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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.| 493000 Sidereal Years | to common time units |
|---|---|
| 493000 Sy | = 15558167705472 seconds (s) |
| 493000 Sy | = 259302795091.2 minutes (min) |
| 493000 Sy | = 4321713251.52 hours (hr) |
| 493000 Sy | = 180071385.48 days (day) |
| 493000 Sy | = 25724483.64 weeks (wk) |
| 493000 Sy | = 493346.26158904 years (yr) |
| 493000 Sy | = 5920155.1390685 months (mo) |
| 493000 Sy | = 49328.369389575 decades (dec) |
| 493000 Sy | = 4932.8369389575 centuries (cent) |
| 493000 Sy | = 493.28369389575 millenniums (mill) |