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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.| 4640472912 Sidereal Years | to common time units |
|---|---|
| 4640472912 Sy | = 1.4644473792616E+17 seconds (s) |
| 4640472912 Sy | = 2.4407456321026E+15 minutes (min) |
| 4640472912 Sy | = 40679093868377 hours (hr) |
| 4640472912 Sy | = 1694962244515.7 days (day) |
| 4640472912 Sy | = 242137463502.25 weeks (wk) |
| 4640472912 Sy | = 4643732176.7554 years (yr) |
| 4640472912 Sy | = 55724786121.065 months (mo) |
| 4640472912 Sy | = 464314324.43297 decades (dec) |
| 4640472912 Sy | = 46431432.443297 centuries (cent) |
| 4640472912 Sy | = 4643143.2443297 millenniums (mill) |