Everyday Tools
Time Duration Calculator
Hours and minutes between two times, midnight-safe, break-aware.
✓ Free
✓ No account
◉ Runs on this device
Everyday Tools
Powering up the tool…
TOOL TIME-DURATIO
What this tool does
About the time duration calculator
Decimal hours for timesheets, night shifts handled correctly.
How to use it
- Enter start and end (24-hour).
- Subtract a break if one applies.
- Read h:mm, decimal hours and total minutes.
- End before start = crossed midnight — handled.
Useful for
- Time a shift, a journey or a session.
- Get decimal hours for billing.
- Handle overnight spans without off-by-a-day errors.
Straight answers
Time Duration Calculator FAQ
Why decimal hours?
Payroll multiplies rate × hours, and 7:45 is 7.75 in that arithmetic, not 7.45 — a classic invoicing error. The tool prints the decimal so the multiplication is safe.
How does midnight work?
22:30 → 06:15 reads as next-day automatically: the night-shift case naive subtraction gets wrong by 16 hours. Multi-day spans want the Date Difference room.