Time to Seconds Calculator
Convert timecode or compact time formats into total seconds. Supports HH:MM:SS, MM:SS, and numeric inputs like 123456.
Input
Accepts
HH:MM:SS, MM:SS, SS,
or digits-only (HHMMSS).
Formula
Total seconds = (HH × 3600) + (MM × 60) + SS
Examples:
12:34:56→ hours, minutes, seconds12:34→ minutes, seconds-
Digits-only:
123456→12:34:56,12345→01:23:45,1234→00:12:34
Results
Total seconds
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Normalized:
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Tip: Result auto-copies to clipboard after conversion.
History
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How the Calculator Works
Turn Timecode Into a Single Number
This tool converts a time value into total seconds. You can enter classic timecode formats like HH:MM:SS or MM:SS, but also compact numeric formats.
- 12:34:56 → treated as hours, minutes, seconds
- 12:34 → treated as minutes, seconds
- 123456 → interpreted as 12:34:56
- 12345 → interpreted as 01:23:45
- 1234 → interpreted as 00:12:34