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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.| 9803864643 Sidereal Years | to common time units |
|---|---|
| 9803864643 Sy | = 3.0939182612077E+17 seconds (s) |
| 9803864643 Sy | = 5.1565304353462E+15 minutes (min) |
| 9803864643 Sy | = 85942173922437 hours (hr) |
| 9803864643 Sy | = 3580923913434.9 days (day) |
| 9803864643 Sy | = 511560559062.13 weeks (wk) |
| 9803864643 Sy | = 9810750447.7668 years (yr) |
| 9803864643 Sy | = 117729005373.2 months (mo) |
| 9803864643 Sy | = 980950621.81602 decades (dec) |
| 9803864643 Sy | = 98095062.181602 centuries (cent) |
| 9803864643 Sy | = 9809506.2181602 millenniums (mill) |