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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.| 447900 Sidereal Years | to common time units |
|---|---|
| 447900 Sy | = 14134895162842 seconds (s) |
| 447900 Sy | = 235581586047.36 minutes (min) |
| 447900 Sy | = 3926359767.456 hours (hr) |
| 447900 Sy | = 163598323.644 days (day) |
| 447900 Sy | = 23371189.092 weeks (wk) |
| 447900 Sy | = 448214.58532603 years (yr) |
| 447900 Sy | = 5378575.0239123 months (mo) |
| 447900 Sy | = 44815.774137101 decades (dec) |
| 447900 Sy | = 4481.5774137101 centuries (cent) |
| 447900 Sy | = 448.15774137101 millenniums (mill) |