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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 Hours (hr) is equal to 3600 seconds, while 1 Sidereal Years (Sy) = 31558149.504 seconds.| 505000000 Hours | to common time units |
|---|---|
| 505000000 hr | = 1818000000000 seconds (s) |
| 505000000 hr | = 30300000000 minutes (min) |
| 505000000 hr | = 505000000 hours (hr) |
| 505000000 hr | = 21041666.666667 days (day) |
| 505000000 hr | = 3005952.3809524 weeks (wk) |
| 505000000 hr | = 57648.401826484 years (yr) |
| 505000000 hr | = 691780.82191781 months (mo) |
| 505000000 hr | = 5764.1090678503 decades (dec) |
| 505000000 hr | = 576.41090678503 centuries (cent) |
| 505000000 hr | = 57.641090678503 millenniums (mill) |