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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.| 5422990091 Sidereal Years | to common time units |
|---|---|
| 5422990091 Sy | = 1.7113953205049E+17 seconds (s) |
| 5422990091 Sy | = 2.8523255341748E+15 minutes (min) |
| 5422990091 Sy | = 47538758902913 hours (hr) |
| 5422990091 Sy | = 1980781620954.7 days (day) |
| 5422990091 Sy | = 282968802993.53 weeks (wk) |
| 5422990091 Sy | = 5426798961.5198 years (yr) |
| 5422990091 Sy | = 65121587538.238 months (mo) |
| 5422990091 Sy | = 542611071.81512 decades (dec) |
| 5422990091 Sy | = 54261107.181512 centuries (cent) |
| 5422990091 Sy | = 5426110.7181512 millenniums (mill) |