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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 Days (Sd) is equal to 86164.1 seconds, while 1 Hours (hr) = 3600 seconds.| 1645382232 Sidereal Days | to common time units |
|---|---|
| 1645382232 Sd | = 1.4177287917627E+14 seconds (s) |
| 1645382232 Sd | = 2362881319604.5 minutes (min) |
| 1645382232 Sd | = 39381355326.742 hours (hr) |
| 1645382232 Sd | = 1640889805.2809 days (day) |
| 1645382232 Sd | = 234412829.32585 weeks (wk) |
| 1645382232 Sd | = 4495588.507619 years (yr) |
| 1645382232 Sd | = 53947062.091427 months (mo) |
| 1645382232 Sd | = 449501.83632299 decades (dec) |
| 1645382232 Sd | = 44950.183632299 centuries (cent) |
| 1645382232 Sd | = 4495.0183632299 millenniums (mill) |