How many hours between two times calculator
Need to know how many hours between two times? This time duration calculator takes a start and end time and gives you the exact hours and minutes — night shifts crossing midnight are handled automatically.
Time duration calculator FAQ
How do I calculate the hours between two times?
Subtract the start time from the end time. This time duration calculator does it for you: enter both times and it shows the exact hours and minutes, plus total minutes and decimal hours.
What if my shift crosses midnight?
It is handled automatically — if the end time is earlier than the start time, it is treated as the next day, so a 22:00 to 06:00 shift correctly shows 8 hours 0 minutes.
Does it count partial hours and minutes?
Yes. The result shows hours and minutes (for example 8 hours 15 minutes), along with total minutes (495) and decimal hours (8.25) for timesheets and billing.
How do I enter AM and PM?
Use your browser's built-in time picker — it handles 12-hour (AM/PM) and 24-hour formats depending on your device settings.
Why isn't my duration negative when the end time is before the start time?
Overnight spans are assumed: an end time earlier than the start time is taken as the next day, so you always get a positive duration instead of a negative number.