How do I calculate work hours with a lunch break?

Subtract the break duration from the total time between start and end. For example, 9:00 AM to 5:30 PM is 8.5 hours. Minus 30 minutes lunch = 8 hours worked.

How is overtime calculated?

In India, most employment laws consider hours beyond 9 hours per day or 48 hours per week as overtime, payable at double the ordinary rate. Check your specific employment contract or industry rules for the applicable threshold.

Can I calculate pay for multiple shifts?

Yes. Add multiple shifts per day or across the week and the calculator totals all hours and pay, applying overtime rules where applicable.

How do I convert hours and minutes to decimal?

Divide minutes by 60. For example, 7 hours 45 minutes = 7 + (45 ÷ 60) = 7.75 hours. This calculator handles the conversion automatically.

Is this calculator suitable for night shift work?

Yes. Enter the start time (e.g., 10 PM) and end time on the next day (e.g., 6 AM) and the calculator handles the midnight rollover correctly.

Work Hours Calculator – Track Hours, Overtime & Pay

Calculate total work hours across shifts, deduct break times, compute overtime, and estimate total pay. Works for daily, weekly, and multi-shift schedules. Useful for freelancers, shift workers, and anyone verifying a timesheet.

Weekly Schedule

Hourly Rate ($)

Mondaytobreakmin7h 30m

Tuesdaytobreakmin7h 30m

Wednesdaytobreakmin7h 30m

Thursdaytobreakmin7h 30m

Fridaytobreakmin7h 30m

Saturdaytobreakmin—

Sundaytobreakmin—

Total Hours

37h 30m

Days Worked

Avg / Day

7h 30m

Decimal Hours

37.50

Who Uses a Work Hours Calculator

Freelancers and contractors

Track hours per project or client to generate accurate invoices and ensure you are billing for all time worked.

Shift workers and hourly employees

Calculate total hours across multiple shifts, deduct break times, and find total weekly hours before submitting a timesheet.

Payroll verification

Cross-check employer payslips by entering your hours worked and hourly rate to verify total pay and overtime calculation.

How to Calculate Work Hours

Enter start and end times

Provide clock-in and clock-out times for each shift or workday.

Add break time

Enter lunch break or total break duration in minutes.

Set hourly rate (optional)

Add your pay rate to calculate total earnings alongside hours.

View total hours and pay

See daily hours, weekly total, overtime, and estimated earnings.

Overtime Rules in India: What You Need to Know

Overtime regulations in India vary by sector and state. Under the Factories Act, 1948, workers cannot work more than 9 hours per day or 48 hours per week without overtime pay. Overtime is mandated at twice the ordinary wage rate. For shops and establishments, the respective state Shops and Establishments Act applies — most states cap regular hours at 8–9 hours per day and 48–54 hours per week. The Minimum Wages Act ensures a baseline rate on which overtime is calculated. IT and software employees in most states are exempt from the Factories Act but covered by state IT/ITES-specific rules or their employment contracts. Contractual overtime terms may differ from statutory minimums — check your appointment letter for the applicable threshold and rate.

Freelancer Billing: How to Track Billable Hours Accurately

Accurate time tracking is the foundation of freelancer invoicing. The most common billing errors are: rounding down small increments (losing 15–30 min per task adds up to hours per week), forgetting communication time (emails, calls, and review meetings are billable), and not tracking revision rounds. Use a work hours calculator to log start and end time for each session, subtract non-work time, and sum the week before generating an invoice. For fixed-price projects, tracking hours still helps estimate profitability: divide the project fee by total hours to find your effective hourly rate and compare it to your target rate. If the effective rate is consistently below target, either scope is expanding or estimation needs adjusting.

Frequently Asked Questions

How do I calculate work hours with a lunch break?: Subtract the break duration from the total time between start and end. For example, 9:00 AM to 5:30 PM is 8.5 hours. Minus 30 minutes lunch = 8 hours worked.
How is overtime calculated?: In India, most employment laws consider hours beyond 9 hours per day or 48 hours per week as overtime, payable at double the ordinary rate. Check your specific employment contract or industry rules for the applicable threshold.
Can I calculate pay for multiple shifts?: Yes. Add multiple shifts per day or across the week and the calculator totals all hours and pay, applying overtime rules where applicable.
How do I convert hours and minutes to decimal?: Divide minutes by 60. For example, 7 hours 45 minutes = 7 + (45 ÷ 60) = 7.75 hours. This calculator handles the conversion automatically.
Is this calculator suitable for night shift work?: Yes. Enter the start time (e.g., 10 PM) and end time on the next day (e.g., 6 AM) and the calculator handles the midnight rollover correctly.

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