Elapsed time
Time Duration Calculator
Find the exact duration between two times, with optional overnight handling.
Elapsed time8 hrs 30 min8.5 decimal hours
How this calculator works
The calculator converts both clock times to minutes and subtracts the start from the end.
When overnight mode is enabled, an end time earlier than the start is treated as occurring on the following day.
The tool is arithmetic only. Where legal, payroll, holiday, timezone or jurisdiction-specific rules matter, the page states what is and is not included.
Frequently asked questions
What if the end time is after midnight?
Leave overnight mode enabled. For example, 22:00 to 06:00 returns 8 hours.
Can I subtract a break?
Use the shift hours calculator when you need to deduct unpaid break time.