Time Difference Calculator
Find how long it is from one clock time to another. Set the start and the end, and the time between them appears at once.
- Free
- Works offline after your first visit
- Saves on this device
- No sign-up
- Updated
How it works
Each time is turned into minutes after midnight, and the start is taken away from the end. If the end is earlier in the day, the answer wraps past midnight, so an overnight shift still comes out right.
Decimal hours divide the minutes by 60, which is the form most timesheets use.
Worked example
From 9 hours and 15 minutes to 17 hours and 45 minutes is 8 h 30 min, or 8.5 decimal hours.
Questions
Does it work for a shift that crosses midnight?
Yes. If the end time is earlier on the clock than the start, the answer counts on past midnight.
What if the start and end are the same?
The answer is zero. A pair of identical times is not treated as a full day.
Can I use 12-hour times?
Convert them to the 24-hour clock first. Afternoon hours add 12, so 3 PM becomes 15.
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