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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 Nanoseconds (ns) = 1.0E-9 seconds.| 12 Hours | to common time units |
|---|---|
| 12 hr | = 43200 seconds (s) |
| 12 hr | = 720 minutes (min) |
| 12 hr | = 12 hours (hr) |
| 12 hr | = 0.5 days (day) |
| 12 hr | = 0.071428571428571 weeks (wk) |
| 12 hr | = 0.0013698630136986 years (yr) |
| 12 hr | = 0.016438356164384 months (mo) |
| 12 hr | = 0.00013696892834496 decades (dec) |
| 12 hr | = 1.3696892834496E-5 centuries (cent) |
| 12 hr | = 1.3696892834496E-6 millenniums (mill) |