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More exactly, the mean solar day is 86.400 002 ks due to tidal braking, and increasing at the rate of approximately 2 ms/century; to correct for this time standards like UTC use leap seconds with the interval described as "a day" on them being most often 86.4 ks exactly by definition but occasionally one second more or less so that every day ...
Earth-based: the day is based on the time it takes for the Earth to rotate on its own axis, as observed on a sundial [citation needed]. Units originally derived from this base include the week (seven days), and the fortnight (14 days). Subdivisions of the day include the hour (1/24 of a day), which is further subdivided into minutes and seconds ...
Rather than specifically handling this special case, the initial design simply specified an arbitrary time-out date in the future with a default configuration specifying that requests should time out after a maximum of one billion seconds. However, one billion seconds before the 2038 cutoff date is 01:27:28 UTC on 13 May 2006, so requests sent ...
More precisely, a billion seconds is exactly 31 years, 8 months, 2 weeks, 1 day, 17 hours, 46 minutes, and 40 seconds. Does this allow for leap years? — Arthur Rubin 09:28, 14 May 2019 (UTC) I am guessing not because the number of leap days will vary over the duration. Years, months and weeks should ideally be converted into weeks.
This is an accepted version of this page This is the latest accepted revision, reviewed on 7 January 2025. See also: Orders of magnitude (numbers) and Long and short scales Natural number 1000000000 List of numbers Integers ← 10 0 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 9 Cardinal One billion (short scale) One thousand million, or one milliard (long scale) Ordinal One billionth (short ...
This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds. [1]
1 billion [note 2] 27% of the ocean's mass will have been subducted into the mantle. If this were to continue uninterrupted, it would reach an equilibrium where 65% of present-day surface water would be subducted. [82] 1 billion By this point, the Sagittarius Dwarf Spheroidal Galaxy will have been completely consumed by the Milky Way. [83] 1.1 ...
11574 = approximate number of days in a billion seconds; 11593 = smallest prime to start a run of nine consecutive primes of the form 4k + 1; 11605 = smallest integer to start a run of five consecutive integers with the same number of divisors; 11664 = 3-smooth number (2 4 ×3 6). 11690 = weird number [40] 11717 = twin prime with 11719