Everyday calculators
Time Duration Calculator
Calculate elapsed hours and minutes between two times, including overnight spans.
Calculate elapsed time between two clock times. If the end time is earlier than the start time, the tool treats it as ending the next day.
Useful for shifts and schedules
The tool is convenient for estimating meeting length, work shifts, study blocks, travel time, or sleep duration.
Breaks are not deducted
If your schedule includes an unpaid lunch or another break, subtract that break from the elapsed duration.
Overnight example
A start time of 10:00 PM and end time of 6:00 AM is treated as an 8-hour overnight duration.
Frequently asked questions
Does it use 12-hour or 24-hour time?Your browser may display the input according to your device locale, but the calculation works from the selected time.
Can it handle multiple days?This version supports up to one overnight crossing.