◇ What is a Time Duration Calculator?
This free time duration calculator finds the exact amount of time between two times. Add a break to calculate your actual working or study time.
Smart Time Tool
Time Duration Calculator
Find the exact time between two moments, subtract breaks, and calculate your real working hours in seconds.
Enter Time Details
Calculates in browser
ℹ️
If the end time is earlier than the start time,
it will automatically be treated as the next day.
Your Result
Ready to calculate
Net Working Time
7h 30m
7 hours 30 minutes
Total Elapsed
8h 30m
8 hours 30 minutes
Break Time
1h
60 minutes
Total Minutes
450
net minutes
Total Seconds
27,000
net seconds
Decimal Hours
7.50
decimal hours
☷ Example
- Start: 09:00 AM
- End: 05:30 PM
- Break: 60 minutes
- Working time: 7h 30m
What Is a Time Duration Calculator?
A time duration calculator helps you find the exact amount of time between two times. Enter a start time and an end time to calculate the duration in hours and minutes.
It is useful for working hours, study sessions, shifts, appointments, travel time, breaks, and other everyday activities.
Tip: If the end time is earlier than the start time, the calculator automatically treats it as the following day.
How to Calculate Time Between Two Times
Enter the time when your activity starts and the time when it ends, then select Calculate Time. The calculator shows the total elapsed time automatically.
Subtract a break
If you took a lunch break or another break, enter the total break duration in minutes. The calculator subtracts it from the elapsed time and shows your net working time.
Calculate Working Hours With Breaks
For example, if you work from 9:00 AM to 5:30 PM and take a 60-minute break, the total elapsed time is 8 hours 30 minutes. After subtracting the break, the net working time is 7 hours 30 minutes.
Calculate Overnight Shifts
If you start at 10:00 PM and finish at 6:00 AM, the calculator recognizes that the ending time belongs to the following day and calculates the overnight duration correctly.
Common Uses
- Calculate daily working hours
- Subtract lunch and other breaks
- Track study sessions
- Calculate overnight shifts
- Check appointment or activity duration
- Find total minutes and decimal hours
Frequently Asked Questions
How do I calculate hours between two times?
Enter the starting time and ending time, then select Calculate Time. The calculator will show the exact duration between the two times.
How do I calculate working hours minus a lunch break?
Enter your start and end times, then enter the lunch break in minutes. The calculator subtracts the break and shows your net working time.
Can I calculate an overnight shift?
Yes. If the end time is earlier than the start time, it is automatically treated as occurring on the following day.
Can I calculate time in minutes?
Yes. The results include total minutes along with hours, minutes, seconds, and decimal hours.
Is this time duration calculator free?
Yes. The calculator is free to use and does not require an account for basic calculations.
Does the calculator work on mobile phones?
Yes. The calculator is responsive and works on phones, tablets, and desktop computers.
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