Time Duration Calculator
Enter a start time and an end time to calculate the duration between them. The calculator shows the result in hours and minutes, as well as decimal hours.
Total Work Hours
35:00
35.00 decimal hrs
Regular Hours
35:00
35.00 decimal hrs
Overtime Hours
0:00
0.00 decimal hrs
Days Worked
5 days
Avg: 7:00/day (7.00h)
Overtime threshold: 40 hours/week (Multiplier: 1.5x). Calculations update automatically.
Duration Calculation Formula
Duration = End Time − Start Time
For intervals crossing midnight, 24 hours (1440 minutes) are automatically added to the end time.
Frequently Asked Questions
Can I calculate durations that cross midnight?
Yes. If your end time is earlier than your start time (e.g., 22:00 to 06:00), the calculator treats the duration as crossing midnight and adds 24 hours to the end time.
Does the calculator show decimal hours?
Yes, the calculator shows the duration in both HH:MM format and decimal hours (hours + minutes/60).