Convert Seconds to Hours
s to hr · time conversion
What are seconds and hours?
The second is the SI base unit of time, defined by the vibration of a cesium atom. An hour is 60 minutes, or 3,600 seconds. For reference: there are 86,400 seconds in a day and 604,800 in a week.
How to convert seconds to hours
1 s = 0.000277778 hr. To convert, multiply the number of seconds by 0.000277778. For example, 5 s = 0.00138889 hr, and 20 s = 0.00555556 hr. To go the other way, multiply hours by 3,600 (since 1 hr = 3,600 s).
Seconds to Hours conversion table
| Seconds (s) | Hours (hr) |
|---|---|
| 1 | 0.000277778 |
| 5 | 0.00138889 |
| 10 | 0.00277778 |
| 30 | 0.00833333 |
| 60 | 0.0166667 |
| 90 | 0.025 |
| 365 | 0.101389 |
FAQ
What is 1 s in hr?
1 s = 0.000277778 hr. To convert any amount, multiply the number of seconds by 0.000277778.
How do I convert hours back to seconds?
Go the other way: 1 hr = 3,600 s, so multiply hours by 3,600 to get seconds.
Is a second bigger than a hour?
No — 1 s is the smaller unit, equal to 0.000277778 hr (it takes 3,600 s to make one hr).
Are these time conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.