How do I calculate hours worked between two times?

Subtract the start time from the end time. If the end time is earlier than the start time, treat it as an overnight shift and add 24 hours.

How do I subtract lunch and breaks?

Enter a fixed lunch duration or add custom break intervals. The calculator deducts these from the gross duration to show net hours.

What is the difference between hh:mm and decimal hours?

hh:mm shows hours and minutes (e.g., 7:15). Decimal hours convert minutes to a fraction of an hour (7.25). Use minutes/60 to convert.

How does the calculator handle shifts that cross midnight?

If the end time is less than the start time, it assumes the shift ended the next day and adds 24 hours before subtracting.

Hours Calculator

Calculate work hours & time duration in hh:mm and decimal format

Calculate hours between times, subtract breaks, handle overnight shifts, and see weekly totals with optional overtime

Time Input

Time Format

12-hour (AM/PM) 24-hour

Start Time

End Time

Breaks

Lunch Break (minutes)

Additional Breaks (minutes)

Results

Total Duration

8:00 (8.00 hours)

Net Hours (After Breaks)

7:30 (7.50 hours)

Calculation Details

Time format: 12-hour

Overnight shift: No

Rounding: None

Total breaks: 30 minutes

How to Use the Hours Calculator

Convert Minutes to Decimal Hours

15 minutes = 0.25 hours, 30 minutes = 0.50 hours, 45 minutes = 0.75 hours. Divide minutes by 60 to get the decimal equivalent.

Overnight Shifts

If your end time is earlier than start time (e.g., 11:00 PM to 7:00 AM), the calculator automatically treats it as crossing midnight.

Rounding Policies

Many employers use 15-minute rounding rules. Choose your rounding strategy and increment to match your workplace policies.

Frequently Asked Questions

Disclaimer

This tool is for general information and educational purposes only and does not constitute legal, compliance, or payroll professional advice. Overtime, break, and rounding policies may vary by jurisdiction or employer. Please refer to applicable laws and employer policies.