SI unit: second (s)
Time Converter
Time measures the duration of events. The SI base unit is second (s), with minutes, hours, days, and years commonly used in everyday life.
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Reference Table
View a complete conversion table for hours to minutes.
View Reference Table →Frequently Asked Questions
How many minutes in an hour?
There are exactly 60 minutes in one hour.
What is the SI unit of time?
The SI base unit for time is the second (s), defined by the duration of 9,192,631,770 periods of radiation from cesium-133.
How many hours in a day?
There are exactly 24 hours in one day by definition.