Calculate total work hours for a single shift between start and end times with one configurable break. Essential for timesheets and payroll. Numbers never leave your device — every calculation runs locally in your browser.
Calculate the exact duration between two times. Handles overnight time spans and displays results in hours, minutes, and seconds. Numbers never leave your device — every calculation runs locally in your browser.
Add hours and minutes to any time — shift schedules, compute end times, total durations. Add 8h30m to 9:00 for shift end — free, local, no signup.
Calculate the percentage difference between any two numbers. Useful for comparing data sets, prices, and measurements. Numbers never leave your device — every calculation runs locally in your browser.
Calculate Annual Recurring Revenue from subscription revenue, expansion revenue, and churn. Essential for SaaS businesses tracking growth. Numbers never leave your device — every calculation runs locally in your browser.
Calculate customer churn rate by dividing customers lost by total customers. Monitor retention health for your subscription business. Numbers never leave your device — every calculation runs locally in your browser.
Enter your start time, end time, and break duration in minutes. The calculator subtracts break time from total hours to give your actual worked hours.
No — one shift (start, end, one break) per run; there is no day list or weekly sum. Run each day separately and add the totals yourself for timesheets and weekly pay.
No — end time must be later than start time on the same day. An overnight span (e.g., 10 PM to 6 AM) yields a negative total instead of wrapping past midnight.
Break is a whole-minutes number for one shift. The tool subtracts break minutes from the shift span and shows hours and minutes (e.g., 7h 30m).
No. All calculations run locally in your browser. No work hours or timesheet data are transmitted.
09:00–17:00 minus 30 minutes = 7h 30m. Overnight shifts wrap past midnight instead of going negative (22:00 to 06:00 with no break = 8h 0m). Break is whole minutes for a single shift — run each day separately and add them for weekly totals.
Business Days Calculator
Count working days between two dates excluding weekends — HR teams prorate leave and payroll accurately. A 20-day leave request spans 28 calendar days — free, no signup, runs locally.
Hours & Minutes Calculator
Add and subtract hours:minutes durations — timesheets, shifts, project totals. Sum 7:30 + 8:15 correctly — free, local, no signup.
Last updated October 2026