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Encyclopedia > Orders of magnitude (time)
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Please improve this article if you can. (December 2007)
Orders of
magnitude (time)
in E notation

Planck time
1 E-25 s
1 E-24 s
1 E-21 s
1 E-18 s
1 E-17 s
1 E-16 s
1 E-15 s
1 E-14 s
1 E-13 s
1 E-12 s
1 E-11 s
1 E-10 s
1 E-9 s
1 E-8 s
1 E-7 s
1 E-6 s
1 E-5 s
1 E-4 s
1 E-3 s
1 E-2 s
1 E-1 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 10−24 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 10−24 seconds and 10−21 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 10-21 seconds and 10-20 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 10−18 seconds and 10−15 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 10-17 seconds and 10-16 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 10-16 seconds and 10-15 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 10−15 seconds and 10−12 seconds (1 femtosecond and 1 picosecond). ... To help compare orders of magnitude of different times this page lists times between 10-14 seconds and 10-13 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 10-13 seconds and 10-12 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 10−12 seconds and 10−11 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 10-11 seconds and 10-10 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 10-10 seconds and 10-9 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 10-9 seconds and 10-8 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 10−8 seconds and 10−7 seconds (10 to 100 nanoseconds). ... To help compare orders of magnitude of different times this page lists times between 10−7 seconds and 10−6 seconds (0. ... To help compare orders of magnitude of different times this page lists times between 10-6 seconds and 10-5 seconds (1. ... To help compare orders of magnitude of different times this page lists times between 10−5 seconds and 10−4 seconds (10 to 100 microseconds). ... To help compare orders of magnitude of different times this page lists times between 10-4 seconds and 10-3 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 10−2 seconds and 10−1 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. ...

↓/↓

Contents

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 1×10−7 rad·s−1 and 1×107 rad·s−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 10−36 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 right-hand 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 tP 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: half-life of lithium-4.[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: half-life of helium-9's outer neutron in the second nuclear halo.
17 zs: approximate period of electromagnetic radiation at the boundary between gamma rays and X-rays.
300 zs: approximate typical cycle time of X-rays, on the boundary between hard and soft X-rays		 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 half-life 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
100 1 second s 60 s: 1 minute 1 s, 10 s, 100 s
103 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		 103 s, 104 s, 105 s
106 1 megasecond
(11.6 days)		 Ms month = 2.6 x 106 s
year = 31.6 Ms = 107.50 s ≈ π x 107 s		 106 s, 107 s, 108 s
109 1 gigasecond
(32 years)		 Gs century = 3.16 Gs ≈ π×109 s
millennium = 31.6 Gs ≈ π×1010 s		 109 s, 1010 s, 1011 s
1012 1 terasecond
(32 000 years)		 Ts eon = 31.6 Ts ≈ π×1013 s 1012 s, 1013 s, 1014 s
1015 1 petasecond
(32 million years)		 aeon = 31.6 Ps ≈ π×1016 s
4.3×1017 s ≈ 13.7 billion years, the approximate age of the universe		 1015 s, 1016 s, 1017 s
1018 1 exasecond
(32 billion years)		 1018 s, 1019 s, 1020 s
1021 1 zettasecond
(32 trillion years)		 1021 s, 1022 s, 1023 s
1024 1 yottasecond
(32 quadrillion years)		 1024 s, 1025 s, 1026 s and more
v • d • e
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 10-44s and 10-43s. ... 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 10-24. ... 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 échelle 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 échelle courte. ... This article is about the unit of time. ... Boson (game) Bosons, named after Satyendra Nath Bose, are particles which form totally-symmetric composite quantum states. ... The top quark is the third-generation up-type quark with a charge of +(2/3)e. ... Look up decay in Wiktionary, the free dictionary. ... Half-Life For a quantity subject to exponential decay, the half-life 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 10−24 seconds and 10−21 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 10−23 seconds and 10−22 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 10-22 seconds and 10-21 seconds (100 yoctoseconds to 1 zeptosecond) See also times of other orders of magnitude. ... A zeptosecond is an SI unit of time equal to 10-21 of a second. ... Zepto (symbol z) is a prefix in the SI system of units denoting a factor of 10-21. ... This article is about the unit of time. ... Exotic helium isotopes are the unstable isotopes of helium. ... This box:      Electromagnetic (EM) radiation is a self-propagating wave in space with electric and magnetic components. ... This article is about electromagnetic radiation. ... An X-ray picture (radiograph), taken by Wilhelm Röntgen in 1896, of his wife, Anna Bertha Ludwigs[1] hand X-rays (or Röntgen 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 10-21 seconds and 10-20 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 10-20 seconds and 10-19 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 10-19 seconds and 10-18 seconds (100 zeptoseconds and 1 attosecond) See also times of other orders of magnitude. ... An attosecond is an SI unit of time equal to 10-18 of a second. ... To help compare orders of magnitude of different times this page lists times between 10−18 seconds and 10−15 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 10-17 seconds and 10-16 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 10-16 seconds and 10-15 seconds (100 attoseconds and 1 femtosecond) See also times of other orders of magnitude. ... A femtosecond is the SI unit of time equal to 10-15 of a second. ... A nanometre (American spelling: nanometer, symbol nm) (Greek: νάνος, nanos, dwarf; μετρώ, 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 10−15 seconds and 10−12 seconds (1 femtosecond and 1 picosecond). ... To help compare orders of magnitude of different times this page lists times between 10-14 seconds and 10-13 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 10-13 seconds and 10-12 seconds (100 femtoseconds and 1 picosecond) See also times of other orders of magnitude. ... A picosecond is an SI unit of time equal to 10-12 of a second. ... The bottom quark is a third-generation quark with a charge of -(1/3)e. ... To help compare orders of magnitude of different times this page lists times between 10−12 seconds and 10−11 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 10-11 seconds and 10-10 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 10-10 seconds and 10-9 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 10−9 seconds and 10−8 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 10-9 seconds and 10-8 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 10−8 seconds and 10−7 seconds (10 to 100 nanoseconds). ... To help compare orders of magnitude of different times this page lists times between 10−7 seconds and 10−6 seconds (0. ... To help compare orders of magnitude of different times this page lists times between 10−6 seconds and 10−5 seconds (1. ... Look up second in Wiktionary, the free dictionary. ... Mu (upper case Îœ, lower case μ) is the 12th letter of the Greek alphabet. ... To help compare orders of magnitude of different times this page lists times between 10-6 seconds and 10-5 seconds (1. ... To help compare orders of magnitude of different times this page lists times between 10−5 seconds and 10−4 seconds (10 to 100 microseconds). ... To help compare orders of magnitude of different times this page lists times between 10-4 seconds and 10-3 seconds (0. ... One millisecond is one-thousandth 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 10−2 seconds and 10−1 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. ... “Exponent” redirects here. ... This article is about the unit of time. ... To help compare different orders of magnitudes this page lists times between 10-44s and 10-43s. ... To help compare orders of magnitude of different times this page lists times between 10−24 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 10−24 seconds and 10−21 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 10-21 seconds and 10-20 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 10−18 seconds and 10−15 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 10−15 seconds and 10−12 seconds (1 femtosecond and 1 picosecond). ... To help compare orders of magnitude of different times this page lists times between 10−12 seconds and 10−11 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 10-11 seconds and 10-10 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 10-10 seconds and 10-9 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 10-9 seconds and 10-8 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 10−8 seconds and 10−7 seconds (10 to 100 nanoseconds). ... To help compare orders of magnitude of different times this page lists times between 10−7 seconds and 10−6 seconds (0. ... To help compare orders of magnitude of different times this page lists times between 10-6 seconds and 10-5 seconds (1. ... To help compare orders of magnitude of different times this page lists times between 10−5 seconds and 10−4 seconds (10 to 100 microseconds). ... To help compare orders of magnitude of different times this page lists times between 10-4 seconds and 10-3 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 10−2 seconds and 10−1 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 | 102 s | 103 s | 104 s | 105 s | 106 s | 107 s | 108 s | 109 s | 1010 s | 1011 s | 1012 s | 1013 s |1014 s | 1015 s | 1016 s | 1017 s | 1018 s | 1019 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
100 1 annum year = 1 annum
decade = 10 anna
century = 100 anna		 1 a, 10 a, 100 a
103 1 kiloannum millennium = 1000 anna 103 a, 104 a, 105 a
106 1 megaannum epoch = 1,000,000 anna 106 a, 107 a, 108 a
109 1 gigaannum aeon = 1,000,000,000 anna
1.37×1010 a ≈ 13.7 billion years, the approximate age of the universe		 109 a, 1010 a, 1011 a
1012 1 teraannum --- 1012 a, 1013 a, 1014 a
1015 1 petaannum --- 1015 a, 1016 a, 1017 a
1018 1 exaannum -- 1018 a, 1019 a, 1020 a
1021 1 zettaannum -- 1021 a, 1022 a, 1023 a
1024 1 yottaannum -- 1024 a, 1025 a, 1026 and more


The pages linked in the right-hand 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 log10 year to log10 second is approximately log10 year + 7.50. Example conversion; 1 year = 100 year = 100 + 7.50 seconds = 100.50 + 7s = 3.16 * 107s. 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

In physics, the Planck time (tP), is the unit of time in the system of natural units known as Planck units. ...

Footnotes

  1. ^ 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.
  2. ^ 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
  3. ^ Shortest time interval measured. BBC News (25 February 2004).
  4. ^ Fastest view of molecular motion. BBC News (4 March 2006).