How many second in 1 hour?
The answer is 3600.
We assume you are converting between second and hour.
You can view more details on each measurement unit:
second or hour
The SI base unit for time is the second.
1 second is equal to 0.000277777777778 hour.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between seconds and hours.
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You may also want to find out how many days are between two dates on the calendar. Use the date calculator to get your age in days or measure the duration of an event.
The second (symbol s) is a unit for time, and one of seven SI base units. It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom at zero kelvins.
The hour was originally defined in Egypt as 1/24 of a day, based on their duo-decimal numbering system (which counted finger joints on each hand).
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