Orders of magnitude (time) in E notation  Planck time 1 E25 s 1 E24 s 1 E21 s 1 E18 s 1 E17 s 1 E16 s 1 E15 s 1 E14 s 1 E13 s 1 E12 s 1 E11 s 1 E10 s 1 E9 s 1 E8 s 1 E7 s 1 E6 s 1 E5 s 1 E4 s 1 E3 s 1 E2 s 1 E1 s Image File history File links Broom_icon. ...
Scientific notation, also known as standard form, is a notation for writing numbers that is often used by scientists and mathematicians to make it easier to write large and small numbers. ...
In physics, the Planck time (tP), is the unit of time in the system of natural units known as Planck units. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’24 seconds (1 yoctosecond) and lower See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’24 seconds and 10âˆ’21 seconds (1 yoctosecond to 1 zeptosecond) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1021 seconds and 1020 seconds (1 zeptosecond to 10 zeptoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’18 seconds and 10âˆ’15 seconds (1 attosecond and 1 femtoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1017 seconds and 1016 seconds (10 attoseconds and 100 attoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1016 seconds and 1015 seconds (100 attoseconds and 1 femtosecond) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’15 seconds and 10âˆ’12 seconds (1 femtosecond and 1 picosecond). ...
To help compare orders of magnitude of different times this page lists times between 1014 seconds and 1013 seconds (10 femtoseconds and 100 femtoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1013 seconds and 1012 seconds (100 femtoseconds and 1 picosecond) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’12 seconds and 10âˆ’11 seconds (1 picosecond and 10 picoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times, this page lists times between 1011 seconds and 1010 seconds (10 picosecond and 100 picoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times, this page lists times between 1010 seconds and 109 seconds (100 picosecond and 1 nanosecond) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 109 seconds and 108 seconds (1 nanosecond and 10 nanoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’8 seconds and 10âˆ’7 seconds (10 to 100 nanoseconds). ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’7 seconds and 10âˆ’6 seconds (0. ...
To help compare orders of magnitude of different times this page lists times between 106 seconds and 105 seconds (1. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’5 seconds and 10âˆ’4 seconds (10 to 100 microseconds). ...
To help compare orders of magnitude of different times this page lists times between 104 seconds and 103 seconds (0. ...
To help compare orders of magnitude of different times this page lists times between 10−3 seconds and 10−2 seconds (1. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’2 seconds and 10âˆ’1 seconds (10 to 100 milliseconds). ...
To help compare orders of magnitude of different times this page lists times between 10−1 seconds and 100 seconds (0. ...
 1 E0 s 1 E1 s 1 E2 s 1 E3 s 1 E4 s 1 E5 s 1 E6 s 1 E7 s 1 E8 s 1 E9 s 1 E10 s 1 E11 s 1 E12 s 1 E13 s 1 E14 s 1 E15 s 1 E16 s 1 E17 s 1 E18 s 1 E19 s and more To help compare orders of magnitude of different times this page lists times between 100 seconds and 101 seconds (1 to 10 seconds). ...
To help compare orders of magnitude of different times, this page lists times between 101 seconds and 102 seconds (10 to 100 seconds). ...
To help compare orders of magnitude of different times this page lists times between 102 seconds and 103 seconds (100 seconds to 16. ...
To help compare orders of magnitude of different times this page lists times between 103 seconds (a kilosecond) and 104 seconds (16. ...
To help compare orders of magnitude of different times this page lists times between 104 seconds and 105 seconds (2. ...
To help compare orders of magnitude of different times this page lists times between 105 seconds and 106 seconds (27. ...
To help compare orders of magnitude of different times this page lists times between 106 seconds (a megasecond) and 107 seconds (11. ...
To help compare orders of magnitude of different times this page lists times between 116 days and 1157 days or 3. ...
To help compare orders of magnitude of different times this page lists times between 3. ...
To help compare orders of magnitude of different times this page lists times between 109 seconds (a gigasecond) and 1010 seconds (32 years and 320 years). ...
To help compare orders of magnitude of different times this page lists times between 1010 seconds and 1011 seconds (320 years and 3200 years). ...
To help compare orders of magnitude of different times this page lists times between 1011 seconds and 1012 seconds (3,200 years and 32,000 years) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 32 000 years and 320 000 years (1012 seconds—a terasecond—and 1013 seconds). ...
To help compare orders of magnitude of different times this page lists times between 320 000 years and 3 200 000 years (1013 seconds and 1014 seconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 3. ...
To help compare orders of magnitude of different times this page lists times between 1015 seconds (a petasecond) and 1016 seconds (32 million years and 320 million years) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1016 seconds (320 million years) and 1017 seconds (3200 million years). ...
To help compare orders of magnitude of different times this page lists times between 1017 seconds and 1018 seconds (3. ...
To help compare orders of magnitude of different times this page lists times between 1018 seconds (also known as an exasecond) and 1019 seconds (32 000 million years and 320 000 million years) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times, this page lists times longer than 1019 seconds (317 billion years) See also times of other orders of magnitude. ...
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 An order of magnitude is the class of scale or magnitude of any amount, where each class contains values of a fixed ratio to the class preceding it. ...
Categories: Orders of magnitude (area) ...
To help compare different orders of magnitude, the following list describes various angular velocity levels between 1Ã—10âˆ’7 radÂ·sâˆ’1 and 1Ã—107 radÂ·sâˆ’1. ...
This is a list of orders of magnitude for data (or information), measured in bits. ...
Conversion Calculator for Units of Density PICKLES Category: ...
To help compare different orders of magnitude, the following list describes various frequencies. ...
Categories:  ...
To help compare different orders of magnitude, the following list describes various mass levels between 10âˆ’36 kg and 1053 kg. ...
This list compares various sizes of positive numbers, including counts of things, dimensionless numbers and probabilities. ...
This page lists examples of the power in watts produced by various different sources of energy. ...
1 At earth mean sea level. ...
This is a table of specific energy densities by magnitude. ...
This is a table of specific heat capacities by magnitude. ...
To help compare different orders of magnitude, the following list describes various speed levels between 1. ...
Circumstances where water naturally occurs in liquid form are shown in light grey. ...
The pages linked in the righthand column contain lists of volumes that are of the same order of magnitude (power of ten). ...
Conversion of units refers to conversion factors between different units of measurement for the same quantity. ...
The definition, agreement and practical use of units of measurement have played a crucial role in human endeavour from early ages up to this day. ...
Look up si, Si, SI in Wiktionary, the free dictionary. ...
The SI system of units defines seven SI base units: physical units defined by an operational definition. ...
SI derived units are part of the SI system of measurement units and are derived from the seven SI base units. ...
An SI prefix (also known as a metric prefix) is a name or associated symbol that precedes a unit of measure (or its symbol) to form a decimal multiple or submultiple. ...
In physics, Planck units are physical units of measurement defined exclusively in terms of the five universal physical constants shown in the table below in such a manner that all of these physical constants take on the numerical value of one when expressed in terms of these units. ...
Seconds
Orders of magnitude (time) Factor (s)  Multiple  Symbol  Definition  Comparative examples & common units  Orders of magnitude  10^{−44}   t_{P}  Planck time is the unit of time of the natural units system known as Planck units.^{[1]}  The shortest or earliest meaningful interval of time that theoretical physics can describe and consequently the youngest the known universe can be measured. ≈ 5.4×10^{−44} s.  10^{−44} s  10^{−24}  1 yoctosecond  ys^{[2]}  Yoctosecond, (yocto + second), is one quadrillionth (in the long scale) or one septillionth (in the short scale) of a second.  0.3 ys: mean life of the W and Z bosons.^{[citation needed]} 1 ys: time for top quark decay.^{[citation needed]} 91 ys: halflife of lithium4.^{[citation needed]}  1 ys and less, 10 ys, 100 ys  10^{−21}  1 zeptosecond  zs  Zeptosecond, (zepto + second), is one trillionth of one billionth of one second.  7 zs: halflife of helium9's outer neutron in the second nuclear halo. 17 zs: approximate period of electromagnetic radiation at the boundary between gamma rays and Xrays. 300 zs: approximate typical cycle time of Xrays, on the boundary between hard and soft Xrays  1 zs, 10 zs, 100 zs  10^{−18}  1 attosecond    100 attoseconds: shortest measured period of time.^{[3]}^{[4]}  1 as, 10 as, 100 as  10^{−15}  1 femtosecond  fs   cycle time for 390 nanometre light, transition from visible light to ultraviolet  1 fs, 10 fs, 100 fs  10^{−12}  1 picosecond    halflife of a bottom quark  1 ps, 10 ps, 100 ps  10^{−9}  1 nanosecond  ns   1 ns: Time to execute one instruction in a personal computer 1 ns: Light travels 12 inches (30 cm) 1,000,000,000 nanoseconds: 1 second  1 ns, 10 ns, 100 ns  10^{−6}  1 microsecond  µs & µsec   sometimes abbreviated as "µs" (from µ and second) or "µsec"  1 µs, 10 µs, 100 µs  10^{−3}  1 millisecond  ms   blink of an eye ~ 50 to 80 ms  1 ms, 10 ms, 100 ms  10^{0}  1 second  s   60 s: 1 minute  1 s, 10 s, 100 s  10^{3}  1 kilosecond (16.7 minutes)  ks   3.6 ks: 3600 s or 1 hour 86.4 ks: 86 400 s or 1 day 604.8 ks: 1 week  10^{3} s, 10^{4} s, 10^{5} s  10^{6}  1 megasecond (11.6 days)  Ms   month = 2.6 x 10^{6} s year = 31.6 Ms = 10^{7.50} s ≈ π x 10^{7} s  10^{6} s, 10^{7} s, 10^{8} s  10^{9}  1 gigasecond (32 years)  Gs   century = 3.16 Gs ≈ π×10^{9} s millennium = 31.6 Gs ≈ π×10^{10} s  10^{9} s, 10^{10} s, 10^{11} s  10^{12}  1 terasecond (32 000 years)  Ts   eon = 31.6 Ts ≈ π×10^{13} s  10^{12} s, 10^{13} s, 10^{14} s  10^{15}  1 petasecond (32 million years)    aeon = 31.6 Ps ≈ π×10^{16} s 4.3×10^{17} s ≈ 13.7 billion years, the approximate age of the universe  10^{15} s, 10^{16} s, 10^{17} s  10^{18}  1 exasecond (32 billion years)     10^{18} s, 10^{19} s, 10^{20} s  10^{21}  1 zettasecond (32 trillion years)     10^{21} s, 10^{22} s, 10^{23} s  10^{24}  1 yottasecond (32 quadrillion years)     10^{24} s, 10^{25} s, 10^{26} s and more  Orders of magnitude (time), by powers of seconds  Negative powers  10^{−44} s  ...  10^{−25} s  10^{−24} s ... 10^{−22} s  10^{−21} s ... 10^{−19} s  10^{−18} s ... 10^{−16} s  10^{−15} s ... 10^{−13} s  10^{−12} s  10^{−11} s  10^{−10} s  10^{−9} s  10^{−8} s  10^{−7} s  10^{−6} s  10^{−5} s  10^{−4} s  10^{−3} s  10^{−2} s  10^{−1} s An order of magnitude is the class of scale or magnitude of any amount, where each class contains values of a fixed ratio to the class preceding it. ...
Look up time in Wiktionary, the free dictionary. ...
This article is about the unit of time. ...
In physics, the Planck time (tP), is the unit of time in the system of natural units known as Planck units. ...
Look up time in Wiktionary, the free dictionary. ...
In physics, natural units are physical units of measurement defined in terms of universal physical constants in such a manner that some chosen physical constants take on the numerical value of one when expressed in terms of a particular set of natural units. ...
In physics, Planck units are physical units of measurement defined exclusively in terms of the five universal physical constants shown in the table below in such a manner that all of these physical constants take on the numerical value of one when expressed in terms of these units. ...
For other uses, see Universe (disambiguation). ...
To help compare different orders of magnitudes this page lists times between 1044s and 1043s. ...
The second (symbol: s) is the SI base unit of time. ...
Yocto (symbol y) is a SI prefix in the SI system of units denoting a factor of 1024. ...
The quadrillion is a large number which has one of two values depending on how or where it is being used. ...
The long and short scales are two different numerical systems used throughout the world: Short scale is the English translation of the French term Ã©chelle courte. ...
Main article: Names of large numbers A septillion is a number written as either: a 1 followed by 24 zeros (10 to the 24th power, as used in the short scale system of numeration. ...
The long and short scales are two different numerical systems used throughout the world: Short scale is the English translation of the French term Ã©chelle courte. ...
This article is about the unit of time. ...
Boson (game) Bosons, named after Satyendra Nath Bose, are particles which form totallysymmetric composite quantum states. ...
The top quark is the thirdgeneration uptype quark with a charge of +(2/3)e. ...
Look up decay in Wiktionary, the free dictionary. ...
HalfLife For a quantity subject to exponential decay, the halflife is the time required for the quantity to fall to half of its initial value. ...
This is an isotope of Lithium containing 3 protons and one neutron. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’24 seconds and 10âˆ’21 seconds (1 yoctosecond to 1 zeptosecond) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’23 seconds and 10âˆ’22 seconds (10 yoctoseconds to 100 yoctoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1022 seconds and 1021 seconds (100 yoctoseconds to 1 zeptosecond) See also times of other orders of magnitude. ...
A zeptosecond is an SI unit of time equal to 1021 of a second. ...
Zepto (symbol z) is a prefix in the SI system of units denoting a factor of 1021. ...
This article is about the unit of time. ...
Exotic helium isotopes are the unstable isotopes of helium. ...
This box: Electromagnetic (EM) radiation is a selfpropagating wave in space with electric and magnetic components. ...
This article is about electromagnetic radiation. ...
An Xray picture (radiograph), taken by Wilhelm RÃ¶ntgen in 1896, of his wife, Anna Bertha Ludwigs[1] hand Xrays (or RÃ¶ntgen rays) are a form of electromagnetic radiation with a wavelength in the range of 10 to 0. ...
To help compare orders of magnitude of different times this page lists times between 1021 seconds and 1020 seconds (1 zeptosecond to 10 zeptoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1020 seconds and 1019 seconds (10 zeptoseconds and 100 zeptoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1019 seconds and 1018 seconds (100 zeptoseconds and 1 attosecond) See also times of other orders of magnitude. ...
An attosecond is an SI unit of time equal to 1018 of a second. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’18 seconds and 10âˆ’15 seconds (1 attosecond and 1 femtoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1017 seconds and 1016 seconds (10 attoseconds and 100 attoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1016 seconds and 1015 seconds (100 attoseconds and 1 femtosecond) See also times of other orders of magnitude. ...
A femtosecond is the SI unit of time equal to 1015 of a second. ...
A nanometre (American spelling: nanometer, symbol nm) (Greek: Î½Î¬Î½Î¿Ï‚, nanos, dwarf; Î¼ÎµÏ„ÏÏŽ, metrÏŒ, count) is a unit of length in the metric system, equal to one billionth of a metre (or one millionth of a millimetre), which is the current SI base unit of length. ...
For other uses, see Ultraviolet (disambiguation). ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’15 seconds and 10âˆ’12 seconds (1 femtosecond and 1 picosecond). ...
To help compare orders of magnitude of different times this page lists times between 1014 seconds and 1013 seconds (10 femtoseconds and 100 femtoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1013 seconds and 1012 seconds (100 femtoseconds and 1 picosecond) See also times of other orders of magnitude. ...
A picosecond is an SI unit of time equal to 1012 of a second. ...
The bottom quark is a thirdgeneration quark with a charge of (1/3)e. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’12 seconds and 10âˆ’11 seconds (1 picosecond and 10 picoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times, this page lists times between 1011 seconds and 1010 seconds (10 picosecond and 100 picoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times, this page lists times between 1010 seconds and 109 seconds (100 picosecond and 1 nanosecond) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’9 seconds and 10âˆ’8 seconds (1 nanosecond and 10 nanoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 109 seconds and 108 seconds (1 nanosecond and 10 nanoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’8 seconds and 10âˆ’7 seconds (10 to 100 nanoseconds). ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’7 seconds and 10âˆ’6 seconds (0. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’6 seconds and 10âˆ’5 seconds (1. ...
Look up second in Wiktionary, the free dictionary. ...
Mu (upper case Îœ, lower case Î¼) is the 12th letter of the Greek alphabet. ...
To help compare orders of magnitude of different times this page lists times between 106 seconds and 105 seconds (1. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’5 seconds and 10âˆ’4 seconds (10 to 100 microseconds). ...
To help compare orders of magnitude of different times this page lists times between 104 seconds and 103 seconds (0. ...
One millisecond is onethousandth of a second. ...
To help compare orders of magnitude of different times this page lists times between 10−3 seconds and 10−2 seconds (1. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’2 seconds and 10âˆ’1 seconds (10 to 100 milliseconds). ...
To help compare orders of magnitude of different times this page lists times between 10−1 seconds and 100 seconds (0. ...
This article is about the unit of time. ...
To help compare orders of magnitude of different times this page lists times between 100 seconds and 101 seconds (1 to 10 seconds). ...
To help compare orders of magnitude of different times, this page lists times between 101 seconds and 102 seconds (10 to 100 seconds). ...
To help compare orders of magnitude of different times this page lists times between 102 seconds and 103 seconds (100 seconds to 16. ...
To help compare orders of magnitude of different times this page lists times between 103 seconds (a kilosecond) and 104 seconds (16. ...
To help compare orders of magnitude of different times this page lists times between 103 seconds (a kilosecond) and 104 seconds (16. ...
To help compare orders of magnitude of different times this page lists times between 104 seconds and 105 seconds (2. ...
To help compare orders of magnitude of different times this page lists times between 105 seconds and 106 seconds (27. ...
To help compare orders of magnitude of different times this page lists times between 106 seconds (a megasecond) and 107 seconds (11. ...
Look up MS, Ms, ms, .ms in Wiktionary, the free dictionary. ...
To help compare orders of magnitude of different times this page lists times between 106 seconds (a megasecond) and 107 seconds (11. ...
To help compare orders of magnitude of different times this page lists times between 116 days and 1157 days or 3. ...
To help compare orders of magnitude of different times this page lists times between 3. ...
To help compare orders of magnitude of different times this page lists times between 109 seconds (a gigasecond) and 1010 seconds (32 years and 320 years). ...
To help compare orders of magnitude of different times this page lists times between 109 seconds (a gigasecond) and 1010 seconds (32 years and 320 years). ...
To help compare orders of magnitude of different times this page lists times between 1010 seconds and 1011 seconds (320 years and 3200 years). ...
To help compare orders of magnitude of different times this page lists times between 1011 seconds and 1012 seconds (3,200 years and 32,000 years) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 32 000 years and 320 000 years (1012 seconds—a terasecond—and 1013 seconds). ...
Look up eon, Eon, EON in Wiktionary, the free dictionary. ...
To help compare orders of magnitude of different times this page lists times between 32 000 years and 320 000 years (1012 seconds—a terasecond—and 1013 seconds). ...
To help compare orders of magnitude of different times this page lists times between 320 000 years and 3 200 000 years (1013 seconds and 1014 seconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 3. ...
To help compare orders of magnitude of different times this page lists times between 1015 seconds (a petasecond) and 1016 seconds (32 million years and 320 million years) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1015 seconds (a petasecond) and 1016 seconds (32 million years and 320 million years) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1016 seconds (320 million years) and 1017 seconds (3200 million years). ...
To help compare orders of magnitude of different times this page lists times between 1017 seconds and 1018 seconds (3. ...
To help compare orders of magnitude of different times this page lists times between 1018 seconds (also known as an exasecond) and 1019 seconds (32 000 million years and 320 000 million years) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1018 seconds (also known as an exasecond) and 1019 seconds (32 000 million years and 320 000 million years) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times, this page lists times longer than 1019 seconds (317 billion years) See also times of other orders of magnitude. ...
Look up second in Wiktionary, the free dictionary. ...
To help compare orders of magnitude of different times, this page lists times longer than 1019 seconds (317 billion years) See also times of other orders of magnitude. ...
Look up second in Wiktionary, the free dictionary. ...
To help compare orders of magnitude of different times, this page lists times longer than 1019 seconds (317 billion years) See also times of other orders of magnitude. ...
â€œExponentâ€ redirects here. ...
This article is about the unit of time. ...
To help compare different orders of magnitudes this page lists times between 1044s and 1043s. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’24 seconds (1 yoctosecond) and lower See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’24 seconds and 10âˆ’21 seconds (1 yoctosecond to 1 zeptosecond) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1021 seconds and 1020 seconds (1 zeptosecond to 10 zeptoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’18 seconds and 10âˆ’15 seconds (1 attosecond and 1 femtoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’15 seconds and 10âˆ’12 seconds (1 femtosecond and 1 picosecond). ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’12 seconds and 10âˆ’11 seconds (1 picosecond and 10 picoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times, this page lists times between 1011 seconds and 1010 seconds (10 picosecond and 100 picoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times, this page lists times between 1010 seconds and 109 seconds (100 picosecond and 1 nanosecond) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 109 seconds and 108 seconds (1 nanosecond and 10 nanoseconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’8 seconds and 10âˆ’7 seconds (10 to 100 nanoseconds). ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’7 seconds and 10âˆ’6 seconds (0. ...
To help compare orders of magnitude of different times this page lists times between 106 seconds and 105 seconds (1. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’5 seconds and 10âˆ’4 seconds (10 to 100 microseconds). ...
To help compare orders of magnitude of different times this page lists times between 104 seconds and 103 seconds (0. ...
To help compare orders of magnitude of different times this page lists times between 10−3 seconds and 10−2 seconds (1. ...
To help compare orders of magnitude of different times this page lists times between 10âˆ’2 seconds and 10âˆ’1 seconds (10 to 100 milliseconds). ...
To help compare orders of magnitude of different times this page lists times between 10−1 seconds and 100 seconds (0. ...
 Positive powers  1 s  10 s  10^{2} s  10^{3} s  10^{4} s  10^{5} s  10^{6} s  10^{7} s  10^{8} s  10^{9} s  10^{10} s  10^{11} s  10^{12} s  10^{13} s 10^{14} s  10^{15} s  10^{16} s  10^{17} s  10^{18} s  10^{19} s and more To help compare orders of magnitude of different times this page lists times between 100 seconds and 101 seconds (1 to 10 seconds). ...
To help compare orders of magnitude of different times, this page lists times between 101 seconds and 102 seconds (10 to 100 seconds). ...
To help compare orders of magnitude of different times this page lists times between 102 seconds and 103 seconds (100 seconds to 16. ...
To help compare orders of magnitude of different times this page lists times between 103 seconds (a kilosecond) and 104 seconds (16. ...
To help compare orders of magnitude of different times this page lists times between 104 seconds and 105 seconds (2. ...
To help compare orders of magnitude of different times this page lists times between 105 seconds and 106 seconds (27. ...
To help compare orders of magnitude of different times this page lists times between 106 seconds (a megasecond) and 107 seconds (11. ...
To help compare orders of magnitude of different times this page lists times between 116 days and 1157 days or 3. ...
To help compare orders of magnitude of different times this page lists times between 3. ...
To help compare orders of magnitude of different times this page lists times between 109 seconds (a gigasecond) and 1010 seconds (32 years and 320 years). ...
To help compare orders of magnitude of different times this page lists times between 1010 seconds and 1011 seconds (320 years and 3200 years). ...
To help compare orders of magnitude of different times this page lists times between 1011 seconds and 1012 seconds (3,200 years and 32,000 years) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 32 000 years and 320 000 years (1012 seconds—a terasecond—and 1013 seconds). ...
To help compare orders of magnitude of different times this page lists times between 320 000 years and 3 200 000 years (1013 seconds and 1014 seconds) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 3. ...
To help compare orders of magnitude of different times this page lists times between 1015 seconds (a petasecond) and 1016 seconds (32 million years and 320 million years) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times this page lists times between 1016 seconds (320 million years) and 1017 seconds (3200 million years). ...
To help compare orders of magnitude of different times this page lists times between 1017 seconds and 1018 seconds (3. ...
To help compare orders of magnitude of different times this page lists times between 1018 seconds (also known as an exasecond) and 1019 seconds (32 000 million years and 320 000 million years) See also times of other orders of magnitude. ...
To help compare orders of magnitude of different times, this page lists times longer than 1019 seconds (317 billion years) See also times of other orders of magnitude. ...
 Years Orders of magnitude (time) Factor (a)  Multiple  common units  orders of magnitude  10^{−50}   Planck time, the shortest physically meaningful interval of time ≈ 1.71×10^{−50} a  10^{−50} a  10^{−24}  1 yoctoannum    1 ya and less, 10 ya, 100 ya  10^{−21}  1 zeptoannum    1 za, 10 za, 100 za  10^{−18}  1 attoannum    1 aa, 10 aa, 100 aa  10^{−15}  1 femtoannum    1 fa, 10 fa, 100 fa  10^{−12}  1 picoannum    1 pa, 10 pa, 100 pa  10^{−9}  1 nanoannum  1 second = 3.17 × 10^{8} a ≈ 10^{7.50} a  1 na, 10 na, 100 na  10^{−6}  1 microannum  1 minute = 1.90 × 10^{6} a 1 hour = 1.40 × 10^{4} a  1 ua, 10 ua, 100 ua  10^{−3}  1 milliannum  1 day = 2.73 × 10^{3} a 1 week = 1.91 × 10^{2} a  1 ma, 10 ma, 100 ma  10^{0}  1 annum  year = 1 annum decade = 10 anna century = 100 anna  1 a, 10 a, 100 a  10^{3}  1 kiloannum  millennium = 1000 anna  10^{3} a, 10^{4} a, 10^{5} a  10^{6}  1 megaannum  epoch = 1,000,000 anna  10^{6} a, 10^{7} a, 10^{8} a  10^{9}  1 gigaannum  aeon = 1,000,000,000 anna 1.37×10^{10} a ≈ 13.7 billion years, the approximate age of the universe  10^{9} a, 10^{10} a, 10^{11} a  10^{12}  1 teraannum    10^{12} a, 10^{13} a, 10^{14} a  10^{15}  1 petaannum    10^{15} a, 10^{16} a, 10^{17} a  10^{18}  1 exaannum    10^{18} a, 10^{19} a, 10^{20} a  10^{21}  1 zettaannum    10^{21} a, 10^{22} a, 10^{23} a  10^{24}  1 yottaannum    10^{24} a, 10^{25} a, 10^{26} and more  The pages linked in the righthand column contain lists of times that are of the same order of magnitude (power of ten). Rows in the table represent increasing powers of a thousand (3 orders of magnitude). An order of magnitude is the class of scale or magnitude of any amount, where each class contains values of a fixed ratio to the class preceding it. ...
Look up time in Wiktionary, the free dictionary. ...
Annum is a Latin noun meaning year. ...
An order of magnitude is the class of scale or magnitude of any amount, where each class contains values of a fixed ratio to the class preceding it. ...
In physics, the Planck time (tP), is the unit of time in the system of natural units known as Planck units. ...
Annum is a Latin noun meaning year. ...
An order of magnitude is the class of scale or magnitude of any amount, where each class contains values of a fixed ratio to the class preceding it. ...
Conversion from year to second is year × 31 557 600 using the Julian year. Conversion from log_{10} year to log_{10} second is approximately log_{10} year + 7.50. Example conversion; 1 year = 10^{0} year = 10^{0 + 7.50} seconds = 10^{0.50 + 7}s = 3.16 * 10^{7}s. Conversion of units refers to conversion factors between different units of measurement for the same quantity. ...
A year (from Old English gÄ“r) is the time between two recurrences of an event related to the orbit of the Earth around the Sun. ...
See also Table of natural history, 1728 Cyclopaedia Natural history is an umbrella term for what are now often viewed as several distinct scientific disciplines of integrative organismal biology. ...
The geologic time scale is used by geologists and other scientists to describe the timing and relationships between events that have occurred during the history of the Earth. ...
This is a table of time periods and frequencies relevant to human beings. ...
A logarithmic timeline, based on logarithmic scale, was developed by Heinz von Foerster, the philosopher and physicist. ...
Life on Earth â€¢ â€¢  Axis scale: millions of years ago. ...
A graphical timeline is available here: Graphical timeline of the Big Bang This box: This timeline of the Big Bang describes the events that have occurred and will occur according to the scientific theory of the Big Bang, using the cosmological time parameter of comoving coordinates. ...
The definition, agreement and practical use of units of measurement have played a crucial role in human endeavour from early ages up to this day. ...
In physics, Planck units are physical units of measurement defined exclusively in terms of the five universal physical constants shown in the table below in such a manner that all of these physical constants take on the numerical value of one when expressed in terms of these units. ...
This article is about the unit of time. ...
Annum is a Latin noun meaning year. ...
External links  Exploring Time from Planck time to the lifespan of the universe
In physics, the Planck time (tP), is the unit of time in the system of natural units known as Planck units. ...
Footnotes  ^ Wikipedia contributors. Planck time. Wikipedia, The Free Encyclopedia. December 7, 2007, 05:55 UTC. Available at: http://en.wikipedia.org/w/index.php?title=Planck_time&oldid=176315682. Accessed December 19, 2007.
 ^ The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. Available at: http://www.bartleby.com/61/21/Y0022100.html. Accessed December 19, 2007. note: abbr. ys or ysec
 ^ Shortest time interval measured. BBC News (25 February 2004).
 ^ Fastest view of molecular motion. BBC News (4 March 2006).
Time measurement and standards  Major subjects  Time · Chronometry · Orders of magnitude · Units of time · Metrology 
Time Portal  International standards  UTC · UT · TAI · ISO 311 · Second · DUT1 · Leap second · IERS Terrestrial Time · Geocentric Coordinate Time · Barycentric Coordinate Time BBC News is the department within the BBC responsible for the corporations newsgathering and production of news programmes on BBC television, radio and online. ...
is the 56th day of the year in the Gregorian calendar. ...
Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ...
BBC News is the department within the BBC responsible for the corporations newsgathering and production of news programmes on BBC television, radio and online. ...
is the 63rd day of the year (64th in leap years) in the Gregorian calendar. ...
Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ...
A time scale specifies divisions of time. ...
Look up time in Wiktionary, the free dictionary. ...
Wikipedia does not yet have an article with this exact name. ...
Metrology (from Greek metron (measure), and logy) is the science of measurement. ...
Image File history File links Portal. ...
UTC redirects here. ...
Universal Time (UT) is a timescale based on the rotation of the Earth. ...
International Atomic Time (TAI, from the French name Temps Atomique International) is a highprecision atomic time standard that tracks proper time on Earths geoid. ...
ISO 311 is the part of international standard ISO 31 that defines names and symbols for quantities and units related to space and time. ...
This article is about the unit of time. ...
The time correction DUT1 is the difference between the Universal Time scale UT1 (which corresponds to the Earths rotation) and the Coordinated Universal Time (UTC) (which corresponds, except for a constant offset, to International Atomic Time (TAI)). DUT1 = UT1  UTC DUT1 is maintained in the range 0. ...
A leap second is a onesecond adjustment to civil time in order to keep it close to the mean solar time. ...
The International Earth Rotation and Reference Systems Service is the body responsible for maintaining global time and reference frame standards, notably through its Earth Orientation Parameter (EOP) and International Celestial Reference System (ICRS) groups. ...
Terrestrial Time (TT) is the modern time standard for time on the surface of the Earth. ...
Geocentric Coordinate Time (TCG) is a coordinate time standard intended to be used as the independent variable of time for all calculations pertaining to precession, nutation, the Moon, and artificial satellites of the Earth. ...
Barycentric Coordinate Time (TCB) was defined in 1991 by the International Astronomical Union as one of the replacements for the illdefined Barycentric Dynamical Time (TDB). ...
Civil time · Minute · Hour · 12hour clock · 24hour clock · ISO week date Civil time is another name for mean solar time reckoned from midnight. ...
A minute is a unit of time equal to 1/60th of an hour and to 60 seconds. ...
The hour (symbol: h) is a unit of time. ...
The 12hour clock is a timekeeping convention in which the 24 hours of the day are divided into two periods called ante meridiem (a. ...
The 24hour clock is a convention of time keeping in which the day runs from midnight to midnight and is divided into 24 hours, numbered from 0 to 23. ...
The ISO week date system is a leap week calendar system that is part of the ISO 8601 date and time standard. ...
International Date Line · Solar time · Time zone · Daylight saving time · Time offset · Annum  Obsolete standards  Ephemeris time · Barycentric Dynamical Time · Greenwich Mean Time · Prime Meridian  Time in physics  Spacetime · Chronon · Cosmological decade · Planck epoch · Planck time · Tsymmetry Theory of relativity · Time dilation · Gravitational time dilation · Coordinate time · Proper time â€œDate lineâ€ redirects here. ...
Solar time is based on the idea that when the sun reaches its highest point in the sky, it is noon. ...
Timezone and TimeZone redirect here. ...
Although DST is common in Europe and North America, most of the worlds people do not use it. ...
A time offset is defined by international convention as a number of hours and minutes from Coordinated Universal Time in Greenwich, England. ...
Annum is a Latin noun meaning year. ...
Ephemeris Time (ET) is a now obsolete time scale used in ephemerides of celestial bodies, in particular the Sun (as observed from the Earth), Moon, planets, and other members of the solar system. ...
Barycentric Dynamical Time (TDB) was defined by the International Astronomical Union (IAU) in 1976 to be used as the relativistic replacement for the nonrelativistic Ephemeris Time which had been used in the ephemerides starting in 1960. ...
GMT redirects here. ...
Location of the Prime Meridian Image:Prime Meridian. ...
To meet Wikipedias quality standards, this article or section may require cleanup. ...
For other uses of this term, see Spacetime (disambiguation). ...
A chronon is a hypothetical concept in theoretical physics intended to describe a quantum of time. ...
A cosmological decade ( CÐ ) is a division of the lifetime of the cosmos. ...
Named after Max Planck, in cosmology the Planck epoch (or Planck Era) is the earliest period of time in the history of the universe, from zero to 1043 seconds (one Planck time), during which all four fundamental forces were unified and elementary particles did not yet exist. ...
In physics, the Planck time (tP), is the unit of time in the system of natural units known as Planck units. ...
Tsymmetry is the symmetry of physical laws under a timereversal transformationâ€” The universe is not symmetric under time reversal, although in restricted contexts one may find this symmetry. ...
Twodimensional analogy of spacetime curvature described in General Relativity. ...
Time dilation is the phenomenon whereby an observer finds that anothers clock which is physically identical to their own is ticking at a slower rate as measured by their own clock. ...
Gravitational time dilation is a consequence of Albert Einsteins theories of relativity and related theories which causes time to pass at different rates in regions of a different gravitational potential; the higher the local distortion of spacetime due to gravity, the slower time passes. ...
Coordinate time is the interval of time independent of relativistic time dilation. ...
In relativity, proper time is time measured by a single clock between events that occur at the same place as the clock. ...
Time domain · Continuous time · Discrete time · Absolute time and space  Horology  Clock · Astrarium · Atomic clock · Hourglass · Marine chronometer · Sundial · Water clock History of timekeeping devices · Equation of time · Complication  Calendar  Day · Week · Month · Year · Decade · Century · Millennium Astronomical · Julian · Gregorian · Islamic · Lunisolar · Solar · Lunar · Epact · Intercalation · Leap year Timedomain is a term used to describe the analysis of mathematical functions, or reallife signals, with respect to time. ...
A continuous signal or a continuous time signal is a varying quantity (a signal) that can be, or is expressed, as a continuous function of an independent variable, usually time. ...
Discrete time is noncontinuous time. ...
In physics, the concept of absolute time and absolute space are hypothetical models in which time either runs at the same rate for all the observers in the universe or the rate of time of each observer can be scaled to the absolute time by multiplying the rate by a...
Horology is the study of the science and art of timekeeping devices. ...
For other uses, see Clock (disambiguation). ...
An astrarium, also called a planetarium, is the mechanical representation of the cyclic nature of astronomical objects in one timepiece. ...
â€œNuclear Clockâ€ redirects here. ...
For other uses, see Hourglass (disambiguation). ...
A marine chronometer is a timekeeper precise enough to be used as a portable time standard, used to determine longitude by means of celestial navigation. ...
For other uses, see Sundial (disambiguation). ...
A water clock or clepsydra is a device for measuring time by letting water regularly flow out of a container usually by a tiny aperture. ...
The equation of time is the difference, over the course of a year, between time as read from a sundial and a clock. ...
In horology terms, a complication in a mechanical timepiece is any feature beyond that of a simple hours, minutes, and seconds movement. ...
For other uses, see Calendar (disambiguation) A page from the Hindu calendar 1871â€“1872. ...
Look up day in Wiktionary, the free dictionary. ...
For more details on each day of the week, see days of the week. ...
Look up Month in Wiktionary, the free dictionary. ...
A year (from Old English gÄ“r) is the time between two recurrences of an event related to the orbit of the Earth around the Sun. ...
A decade is a set or a group of ten, commonly a period of 10 years in contemporary English, or a period of 10 days in the French revolutionary calendar. ...
A century (From the Latin cent, one hundred) is one hundred consecutive years. ...
A millennium (pl. ...
Astronomical year numbering is based on BCE/CE (or BC/AD) year numbering, but follows normal decimal integer numbering more strictly. ...
The Julian calendar was a reform of the Roman calendar which was introduced by Julius Caesar in 46 BC and came into force in 45 BC (709 ab urbe condita). ...
For the calendar of religious holidays and periods, see liturgical year. ...
The Islamic calendar or Muslim calendar (Arabic: Ø§Ù„ØªÙ‚ÙˆÙŠÙ… Ø§Ù„Ù‡Ø¬Ø±ÙŠ; attaqwÄ«m alhijrÄ«; Persian: ØªÙ‚ÙˆÛŒÙ… Ù‡Ø¬Ø±ÙŠ Ù‚Ù…Ø±ÛŒ â€Ž taqwÄ«me hejriye qamari; also called the Hijri calendar) is the calendar used to date events in many predominantly Muslim countries, and used by Muslims everywhere to determine the proper day on which to celebrate...
A lunisolar calendar is a calendar whose date indicates both the moon phase and the time of the solar year. ...
A solar calendar is a calendar whose dates indicate the position of the earth on its revolution around the sun (or equivalently the apparent position of the sun moving on the celestial sphere). ...
A lunar calendar is a calendar that is based on cycles of the moon phase. ...
The epact (from Greek: epaktai hèmerai = added days) is, as the second Canon of the Gregorian Calendar reform puts it, nothing else than the number of days which the common solar year of 365 days surpasses the common lunar year of 354 days (Latin: Epacta nihil aliud est quam...
Intercalation is the insertioffn of an extra day, week or month into some calendar years to make the calendar follow the seasons. ...
For the 1921 film starring Fatty Arbuckle, see Leap Year (film). ...
Tropical year · Equinox · Solstice · Days of the week · Calculating the day of the week · Dominical letter  Archaeology & geology  International Commission on Stratigraphy · Geologic Time · Archaeological dating  Astronomical chronology  Nuclear time scale · Precession · Sidereal time · Galactic year  Unusual units  FFF System · Fortnight · Jiffy · Lustrum · Saeculum · Shake · Tide  Related topics  Chronology · Duration · Mental chronometry · Time value of money  A tropical year is the length of time that the Sun, as viewed from the Earth, takes to return to the same position along the ecliptic (its path among the stars on the celestial sphere). ...
For other uses, see Equinox (disambiguation). ...
â€œSummer solsticeâ€ redirects here. ...
This article is about days of the week. ...
This article details various mathematical algorithms to calculate the day of the week for any particular date in the past or future. ...
The days of the year are sometimes designated letters A, B, C, D, E, F and G in a cycle of 7 as an aid for finding the day of week of a given calendar date and in calculating Easter. ...
The International Commission on Stratigraphy concerns itself with stratigraphy on a global scale. ...
// For other uses, see time scale. ...
Dating material drawn from the archaeological record can made by a direct study of a artifact or may be deduced by association with materials found in the context the item is drawn from or inferred by its point of discovery in the sequence relative to datable contexts. ...
The precession of Earths axis of rotation with respect to inertial space is also called the precession of the equinoxes. ...
Sidereal time is time measured by the apparent diurnal motion of the vernal equinox, which is very close to, but not identical with, the motion of stars. ...
// Galactic time NGC 4414, a typical spiral galaxy alike our Milky Way Galactic time, not to confuse with siderial time, is the time that is described by our spin relative to the center of the galaxy. ...
The Furlong/Firkin/Fortnight (FFF) system is a set of units that uses impractical and outdated measurements. ...
A fortnight is a unit of time equal to two weeks: that is 14 days, or literally 14 nights. ...
The term jiffy (or jiffie) is used in different applications for various different short periods of time, usually 1/60 of a second. ...
Lustrum was a sacrifice for expiation and purification offered by one of the censors of Rome in name of the Roman people at the close of the taking of the census, and which took place after a period of five years, so that the name came to denote a period...
A saeculum is a length of time roughly equal to the lifetime of a person, or about 90 years. ...
A shake is an informal unit of time equal to 10 nanoseconds, or 108 seconds. ...
A tide is an obsolete or archaic term for time, period or season, such as eventide, shrovetide, Eastertide, etc. ...
For the novel by Michael Crichton, see Timeline (novel). ...
A duration is an amount of time or a particular time interval. ...
// Definition and history Psychologists have investigated mental chronometry for over 100 years. ...
The time value of money is the premise that an investor prefers to receive a payment of a fixed amount of money today, rather than an equal amount in the future, all else being equal. ...
