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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 Days (Sd) is equal to 86164.1 seconds, while 1 Hours (hr) = 3600 seconds.| 1800 Sidereal Days | to common time units |
|---|---|
| 1800 Sd | = 155095380 seconds (s) |
| 1800 Sd | = 2584923 minutes (min) |
| 1800 Sd | = 43082.05 hours (hr) |
| 1800 Sd | = 1795.0854166667 days (day) |
| 1800 Sd | = 256.44077380952 weeks (wk) |
| 1800 Sd | = 4.9180422374429 years (yr) |
| 1800 Sd | = 59.016506849315 months (mo) |
| 1800 Sd | = 0.49174185161699 decades (dec) |
| 1800 Sd | = 0.049174185161699 centuries (cent) |
| 1800 Sd | = 0.0049174185161699 millenniums (mill) |