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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.| 6628640366 Sidereal Years | to common time units |
|---|---|
| 6628640366 Sy | = 2.0918762367848E+17 seconds (s) |
| 6628640366 Sy | = 3.4864603946413E+15 minutes (min) |
| 6628640366 Sy | = 58107673244021 hours (hr) |
| 6628640366 Sy | = 2421153051834.2 days (day) |
| 6628640366 Sy | = 345879007404.89 weeks (wk) |
| 6628640366 Sy | = 6633296032.4225 years (yr) |
| 6628640366 Sy | = 79599552389.07 months (mo) |
| 6628640366 Sy | = 663245477.73772 decades (dec) |
| 6628640366 Sy | = 66324547.773772 centuries (cent) |
| 6628640366 Sy | = 6632454.7773772 millenniums (mill) |