Time Duration Calculator
Find the exact time between two clock times — including overnight spans.
How to Use
Enter a start time and end time. If your span crosses midnight — like a night shift from 10 PM to 6 AM — tick the "next day" box, or just leave it unticked and the calculator will still detect and handle it automatically when the end time is earlier than the start time.
Common Uses
- Work shift duration, including overnight shifts
- Travel or flight duration between departure and arrival times
- Meeting or event length
- Sleep duration between bedtime and wake-up time