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The hour (common symbol: h or hr, h being the international form of the symbol) is a unit of measurement of time. In modern usage, an hour comprises 60 minutes, or 3,600 second ..more definition+
In relation to the base unit of [time] => (seconds), 1 Sidereal Years (Sy) is equal to 31558149.504 seconds, while 1 Hours (hr) = 3600 seconds.| 823000000 Sidereal Years | to common time units |
|---|---|
| 823000000 Sy | = 2.5972357041792E+16 seconds (s) |
| 823000000 Sy | = 4.328726173632E+14 minutes (min) |
| 823000000 Sy | = 7214543622720 hours (hr) |
| 823000000 Sy | = 300605984280 days (day) |
| 823000000 Sy | = 42943712040 weeks (wk) |
| 823000000 Sy | = 823578039.12329 years (yr) |
| 823000000 Sy | = 9882936469.4795 months (mo) |
| 823000000 Sy | = 82347359.041826 decades (dec) |
| 823000000 Sy | = 8234735.9041826 centuries (cent) |
| 823000000 Sy | = 823473.59041826 millenniums (mill) |