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Time Duration Calculator
Calculate elapsed time between two clock times, including overnight spans. See hours, minutes, decimal hours and total minutes.
Find the time between two clock times
Handles same-day and overnight durations automatically.
Duration updates automatically as you change either time.
Calculate elapsed time between two times
This tool answers questions such as “How long is it from 9:15 AM to 4:40 PM?” If the end time is earlier than the start time, DateTimeWise treats it as an overnight span. You can also mark the next-day option explicitly.
The result includes conventional hours and minutes as well as decimal hours and total minutes. Those extra formats are useful for planning, logs and calculations that need numeric values.
Work shifts
For weekly shifts, lunch breaks, overtime and estimated pay, use WorkHoursTool. DateTimeWise keeps this page focused on general elapsed time.
Common examples
| Start | End | Duration |
|---|---|---|
| 8:00 AM | 5:00 PM | 9 hours |
| 10:30 PM | 6:15 AM | 7h 45m overnight |
| 13:20 | 16:05 | 2h 45m |