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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.| 215100 Sidereal Years | to common time units |
|---|---|
| 215100 Sy | = 6788157958310.4 seconds (s) |
| 215100 Sy | = 113135965971.84 minutes (min) |
| 215100 Sy | = 1885599432.864 hours (hr) |
| 215100 Sy | = 78566643.036 days (day) |
| 215100 Sy | = 11223806.148 weeks (wk) |
| 215100 Sy | = 215251.07681096 years (yr) |
| 215100 Sy | = 2583012.9217315 months (mo) |
| 215100 Sy | = 21522.377800604 decades (dec) |
| 215100 Sy | = 2152.2377800604 centuries (cent) |
| 215100 Sy | = 215.22377800604 millenniums (mill) |