calculators
Time Duration Calculator
Calculate the duration between a start time and end time. Handles crossing midnight. Shows hours, minutes, and total minutes. Free and client-side.
Frequently Asked Questions
What time formats are supported?
Times must be entered in 24-hour format (HH:MM).
Does it handle crossing midnight?
Yes. If the end time is earlier than the start time, the tool assumes the end time is on the next day.
Is my data sent to servers?
No. All calculations happen locally in your browser.