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Time Duration Calculator
Calculate elapsed time between two clock times, add/subtract durations, and convert time units.
All calculations run in your browser — nothing is sent or stored. Browse all free tools · Etsy Shop ↗
Frequently Asked Questions
How do I calculate hours worked between two times?
Use the ‘Time Between’ tab. Enter your clock-in time as Start and clock-out as End. The result shows hours and minutes in decimal format (useful for payroll: 7h 30m = 7.5 hours × hourly rate).
How do I calculate time across midnight?
Enable ‘Crosses Midnight’ when the end time is the next day. For example, a shift from 10:00 PM to 6:00 AM: enter 22:00 start, 06:00 end, and check ‘Yes’ for crosses midnight — result is 8 hours.