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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.| 253400 Sidereal Years | to common time units |
|---|---|
| 253400 Sy | = 7996835084313.6 seconds (s) |
| 253400 Sy | = 133280584738.56 minutes (min) |
| 253400 Sy | = 2221343078.976 hours (hr) |
| 253400 Sy | = 92555961.624 days (day) |
| 253400 Sy | = 13222280.232 weeks (wk) |
| 253400 Sy | = 253577.97705205 years (yr) |
| 253400 Sy | = 3042935.7246247 months (mo) |
| 253400 Sy | = 25354.581751153 decades (dec) |
| 253400 Sy | = 2535.4581751153 centuries (cent) |
| 253400 Sy | = 253.54581751153 millenniums (mill) |