Date & Time
Hours Calculator
Calculate hours between two times for shifts, billing, study sessions, travel, and overnight schedules.
Now
Net duration
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Enter two times to calculate hours.
What is an hours calculator?
An hours calculator finds the amount of time between a start time and an end time. It is commonly used for work shifts, timesheets, payroll, billing, study sessions, travel durations, and overnight schedules. This tool shows the answer as hours and minutes, decimal hours, and total minutes.
How to use this hours calculator
- Enter the start time and end time.
- Keep Same day selected for normal daytime ranges.
- Choose Ends next day for overnight shifts such as 10:00 PM to 6:00 AM.
- Open Advanced options only if you need to subtract break time or round the result.
- Read the net duration, decimal hours, total minutes, gross duration, and break deducted.
Examples
9:00 AM to 5:30 PM
From 09:00 to 17:30 is 8 hours 30 minutes, equal to 8.50 decimal hours or 510 minutes.
10:00 PM to 6:00 AM
Select Ends next day. The calculator treats 6:00 AM as the next morning and returns 8 hours.
Work shift with lunch
For 9:00 to 5:30 with a 30-minute break, enter 30 in Break time. The net result is 8 hours.
Payroll decimal hours
7 hours 45 minutes becomes 7.75 decimal hours because 45 minutes is 0.75 of an hour.
Frequently asked questions
How do I find hours between two times?
Enter the start and end times, then click Calculate Hours. The result shows hours and minutes, decimal hours, and total minutes.
How do I calculate work hours?
Use your clock-in time as the start time and clock-out time as the end time. Add break minutes in Advanced options if you need net work hours.
What is 9:00 AM to 5:30 PM?
It is 8 hours and 30 minutes, or 8.50 decimal hours, or 510 total minutes.
Can this calculator handle overnight shifts?
Yes. Select Ends next day for shifts that cross midnight, such as 10:00 PM to 6:00 AM.
What are decimal hours?
Decimal hours convert minutes into part of an hour. For example, 30 minutes is 0.50 hours and 45 minutes is 0.75 hours.
Can I round to payroll increments?
Yes. Advanced options let you round the net duration to the nearest 5, 10, 15, or 30 minutes.