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Hour
An hour (abbreviation: h or hr) is a unit of measurement used to measure time. An hour is equal to 60 minutes. 24 hours are equal to 1 day. Unlike the second, the hour is not a base SI unit.
Wikimedia Commons has media related to Hour.
Authority: International System of Units (BIPM) | ||
| Base units |  | |
| Units based on other units | ||
| Other SI units | ||
| See also | ||
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