Time Duration Calculator: The Complete Guide
Find how long is between two times. Enter a start and end time to get the duration in hours and minutes, total minutes, and decimal hours — even when the end time is past midnight.
Who the Time Duration Calculator is for
Shift workers, freelancers, and anyone timing an activity who needs hours and minutes between two clock times.
How to use the Time Duration Calculator
- Type your values into the fields above — pick your currency or units where the calculator offers them.
- Results update automatically as you type; there's no submit button and nothing is sent to a server.
- Adjust any input to compare scenarios, then copy the result with a single click.
How it works
Duration = end time − start time in minutes. If the end is earlier than the start, the calculator adds 24 hours, treating it as an overnight span. Decimal hours = minutes ÷ 60.
Features
- Hours & minutes
- Total minutes
- Decimal hours for timesheets
- Handles overnight
Timing across midnight
Calculating elapsed time is easy within a day but trips people up when a shift crosses midnight. This calculator detects when the end time is earlier than the start and adds a day automatically, so an overnight shift from 22:00 to 06:00 correctly reads eight hours. Decimal hours make it timesheet-ready.