Time to Seconds Calculator
Convert HH:MM:SS duration to total seconds. Enter hours, minutes, and seconds to get the complete duration expressed as a single second count.
3,600 seconds
Formula
Total seconds = H × 3600 + M × 60 + S
How to Convert Time to Seconds
To convert HH:MM:SS to total seconds:
Total seconds = H × 3600 + M × 60 + S
Example: 1:00:00 = 3600 seconds
Example: 0:01:30 = 90 seconds
Example: 2:30:00 = 9000 seconds
Time to Seconds Reference Table
| HH:MM:SS | Total Seconds |
|---|---|
| 00:00:30 | 30 |
| 00:01:00 | 60 |
| 00:05:00 | 300 |
| 00:10:00 | 600 |
| 00:15:00 | 900 |
| 00:30:00 | 1,800 |
| 01:00:00 | 3,600 |
| 01:30:00 | 5,400 |
| 02:00:00 | 7,200 |
| 04:00:00 | 14,400 |
| 06:00:00 | 21,600 |
| 08:00:00 | 28,800 |
| 12:00:00 | 43,200 |
| 24:00:00 | 86,400 |