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Conversions of other time units
Unit Name | Symbol | SI Equivalent s |
atomic unit of time | a.u. | 2.41888432650516×10−17 s |
blink | 0.86400000000000 s | |
day | d | 8.64000000000000×10+4 s |
day (sidereal) | d (sider.) | 8.61640905000000×10+4 s |
fortnight | 1.20960000000000×10+6 s | |
hour | h | 3600 s |
Jordan's elementary time | 9.39960000000000×10−24 s | |
microsecond | µs | 1×10−6 s |
millisecond | ms | 1×10−3 s |
minute | min | 60 s |
month (30 days) | 2.592000000000000×10+6 s | |
month (sidereal) | 2.36059×10+6 s | |
month (solar mean) | 2.628×10+6 s | |
month (synodic), lunar month | 2.55144×10+6 s | |
nano second | ns | 1×10−9 s |
second | s | 1 s |
shake | 1×10−8 s | |
week | w | 6.048×10+5 s |
wink | 3.33333333333333×10−10 s | |
year (astronomical), Bessel year | a astr. | 3.16877865764199×10+7 s |
year (calendar) | a, y | 3.17097919837646×10+7 s |
year (sidereal) | 3.16875360110507×10+7 s | |
year (solar mean) | a, y | 3.16880878140289×10+7 s |
year (tropical) | a trop. | 3.16887653578328×10+7 s |
• 365 days - a common year in many solar calendars; ~31.53 million seconds • 365.24219 days - a mean tropical year near the year 2000 • 365.2424 days - a vernal equinox year. • 365.2425 days - the average length of a year in the Gregorian calendar • 365.25 days - the average length of a year in the Julian calendar; the light year is based on it • it is 31,557,600 seconds •365.2564 days - a sidereal year • 366 days - a leap year in many solar calendars; 31.62 million seconds |
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