Time Duration Calculator
Calculate the duration between two times of day in hours and minutes.
Time Duration Calculator
Calculate the duration between two times of day in hours and minutes.
Enter a time in 24-hour HH:MM format, e.g. 09:30.
Enter a time in 24-hour HH:MM format, e.g. 17:45.
Real-World Examples
Morning to afternoon
09:30 to 17:45
8h 15m
Overnight shift
22:00 to 06:00
8h 0m (crosses midnight)
Lunch break
12:00 to 13:30
1h 30m
Common Mistakes to Avoid
Forgetting that times can cross midnight
Fix: If the end time is earlier than the start (e.g. 22:00 to 06:00), the calculator assumes the end is the next day. Make sure this matches your scenario.
Using 12-hour format without AM/PM
Fix: This calculator uses 24-hour time (HH:MM). 3:00 PM should be entered as 15:00, not 3:00, to avoid ambiguity.