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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 Hours (hr) is equal to 3600 seconds, while 1 Femtoseconds (fs) = 1.0E-15 seconds.| 66 Hours | to common time units |
|---|---|
| 66 hr | = 237600 seconds (s) |
| 66 hr | = 3960 minutes (min) |
| 66 hr | = 66 hours (hr) |
| 66 hr | = 2.75 days (day) |
| 66 hr | = 0.39285714285714 weeks (wk) |
| 66 hr | = 0.0075342465753425 years (yr) |
| 66 hr | = 0.09041095890411 months (mo) |
| 66 hr | = 0.00075332910589727 decades (dec) |
| 66 hr | = 7.5332910589727E-5 centuries (cent) |
| 66 hr | = 7.5332910589727E-6 millenniums (mill) |