How many hour in 1 second?
The answer is 0.00027777777777778.
We assume you are converting between hour and second.
You can view more details on each measurement unit: hour or
second
The SI base unit for time is the second.
1 hour is equal to 3600 second.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between hours and seconds.
Type in your own numbers in the form to convert the units!

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››Quick conversion chart of hour to second

1 hour to second = 3600 second

2 hour to second = 7200 second

3 hour to second = 10800 second

4 hour to second = 14400 second

5 hour to second = 18000 second

6 hour to second = 21600 second

7 hour to second = 25200 second

8 hour to second = 28800 second

9 hour to second = 32400 second

10 hour to second = 36000 second

››Want other units?

You can do the reverse unit conversion from
second to hour, or enter any two units below:

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).

››Definition: Second

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.

››Metric conversions and more

ConvertUnits.com provides an online
conversion calculator for all types of measurement units.
You can find metric conversion tables for SI units, as well
as English units, currency, and other data. Type in unit
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