Convert Seconds to Hours
Use our free online converter to easily convert from Seconds to Hours. Get accurate conversions instantly.
Converting Seconds to Hours
Converting seconds to hours bridges the gap between the base unit of time and a larger, more practical unit for everyday use, particularly when dealing with long durations.
Mathematical Relationship
The mathematical relation between seconds and hours is: 1 hour = 3,600 seconds. To convert seconds to hours, divide the number of seconds by 3,600.
Common Conversion Values
| Seconds | Hours |
|---|---|
| 900 | 0.25 |
| 1800 | 0.5 |
| 3600 | 1 |
| 7200 | 2 |
| 86400 | 24 |
Unit Definitions
Seconds
The second (symbol: s) is the base unit of time in the International System of Units (SI). It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the cesium-133 atom.
Hours
An hour (symbol: h) is a unit of time equal to 60 minutes, or 3,600 seconds. It is 1/24 of a day.
Historical Context
The second was originally defined as 1/86,400 of a mean solar day. The hour has ancient origins, with the 24-hour day dating back to Egyptian civilization. The precise relationship of 3,600 seconds to 1 hour comes from the Babylonian sexagesimal system.