- 1 E7 s
To help compare
orders of magnitude of different times this page lists times between 116day s and 1157 days or 3.2 years (107second s and 108 seconds).*Shorter times
*10 megaseconds = 115.74 days
*128.6 days —half life ofthulium -170
*138 days — half life ofpolonium - 210
*224.701 days — one orbit of Venus
*271.79 days — half life ofcobalt -57
*280 days — average length of a human pregnancy; ~24 million seconds
*330 days — half life ofvanadium -49
*333.5 days — half life ofcalifornium -248
*353, 354 or 355 days — the lengths of regular years in somelunisolar calendar s
*354.37 days — 12 lunar months; the average length of a year inlunar calendar s
* — The value of pi times 107 seconds is sometimes given as an approximate year value; it works out to 363.61026 days.
*365 days — a regularyear in manysolar calendar s; ~31.53 million seconds
*365.24219 days — a mean tropical year near the year2000
*365.2424 days — a vernal equinox year.
*365.2425 days — the average length of a year in theGregorian calendar
*365.25 days — the average length of a year in theJulian calendar
*365.2564 days — asidereal year
*366 days — aleap year in many solar calendars; 31.62 million seconds
*373.59 days — half-life ofruthenium -106
*383, 384 or 385 days — the lengths of leap years in some lunisolar calendars
*383.9 days — 13 lunar months; leap year in some lunisolar calendars
*396.1 days — half-life ofneptunium -235
*462.6 days — half-life ofcadmium -109
*1.88 years — one orbit of Mars
*1.92 years — half life ofthulium -171
*100 megaseconds = 3.2 years
*Longer timesee also
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