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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.| 1780000000000 Sidereal Years | to common time units |
|---|---|
| 1780000000000 Sy | = 5.617350611712E+19 seconds (s) |
| 1780000000000 Sy | = 9.36225101952E+17 minutes (min) |
| 1780000000000 Sy | = 1.56037516992E+16 hours (hr) |
| 1780000000000 Sy | = 6.501563208E+14 days (day) |
| 1780000000000 Sy | = 92879474400000 weeks (wk) |
| 1780000000000 Sy | = 1781250193972.6 years (yr) |
| 1780000000000 Sy | = 21375002327671 months (mo) |
| 1780000000000 Sy | = 178102429033.35 decades (dec) |
| 1780000000000 Sy | = 17810242903.335 centuries (cent) |
| 1780000000000 Sy | = 1781024290.3335 millenniums (mill) |