How it works
Enter a start and end time and the calculator shows the exact duration in hours, minutes, and seconds. Also shows the decimal equivalent (e.g., 1h 30m = 1.50 hours) which is useful for billing.
If the end time is before the start time, the calculator assumes the end is the next day (overnight shift).
FAQ
What if my shift crosses midnight?
If the end time is earlier than the start time (e.g., 22:00 to 06:00), the calculator automatically assumes the end is the next day and calculates correctly.
What are decimal hours?
Decimal hours express time as a single number: 1h 30m = 1.50 hours, 2h 15m = 2.25 hours. This format is commonly used in billing, payroll, and project management.