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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.| 315500 Sidereal Years | to common time units |
|---|---|
| 315500 Sy | = 9956596168512 seconds (s) |
| 315500 Sy | = 165943269475.2 minutes (min) |
| 315500 Sy | = 2765721157.92 hours (hr) |
| 315500 Sy | = 115238381.58 days (day) |
| 315500 Sy | = 16462625.94 weeks (wk) |
| 315500 Sy | = 315721.59336986 years (yr) |
| 315500 Sy | = 3788659.1204384 months (mo) |
| 315500 Sy | = 31568.15525844 decades (dec) |
| 315500 Sy | = 3156.815525844 centuries (cent) |
| 315500 Sy | = 315.6815525844 millenniums (mill) |