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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.| 15500 Sidereal Years | to common time units |
|---|---|
| 15500 Sy | = 489151317312 seconds (s) |
| 15500 Sy | = 8152521955.2 minutes (min) |
| 15500 Sy | = 135875365.92 hours (hr) |
| 15500 Sy | = 5661473.58 days (day) |
| 15500 Sy | = 808781.94 weeks (wk) |
| 15500 Sy | = 15510.886520548 years (yr) |
| 15500 Sy | = 186130.63824658 months (mo) |
| 15500 Sy | = 1550.8919382118 decades (dec) |
| 15500 Sy | = 155.08919382118 centuries (cent) |
| 15500 Sy | = 15.508919382118 millenniums (mill) |