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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.| 512000000000 Sidereal Years | to common time units |
|---|---|
| 512000000000 Sy | = 1.6157772546048E+19 seconds (s) |
| 512000000000 Sy | = 2.692962091008E+17 minutes (min) |
| 512000000000 Sy | = 4.48827015168E+15 hours (hr) |
| 512000000000 Sy | = 1.8701125632E+14 days (day) |
| 512000000000 Sy | = 26715893760000 weeks (wk) |
| 512000000000 Sy | = 512359606356.16 years (yr) |
| 512000000000 Sy | = 6148315276274 months (mo) |
| 512000000000 Sy | = 51229462733.19 decades (dec) |
| 512000000000 Sy | = 5122946273.319 centuries (cent) |
| 512000000000 Sy | = 512294627.3319 millenniums (mill) |