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Free Time, Work Hours & Pay Calculators

Calculate durations, work hours and time cards in your browser. Fast, private and no sign-up required.

Select Calculate to see the duration.

Example · Total worked42h 30mExample · Overtime estimate2h 30m

What do you need to calculate?

  1. Add or subtract lengths of time

    Combine several durations into one total, even when the result is negative.

  2. Find time between two clock times

    Measure elapsed time, with an explicit switch for shifts that end the next day.

  3. Total work shifts or a time card

    One shift after a break, or a full week with estimated overtime and gross pay.

Every tool you need

Most useful for time cards

Time Card Calculator

Total a week or two weeks with unpaid breaks, estimated overtime and optional gross pay.

Example · 42h 30m · 2h 30m overtime · $1,093.75

Time Calculator

Add or subtract hours and minutes across several durations.

Example · 1h 20m + 45m − 30m = 1h 35m

Time Duration Calculator

Find the time between a start and an end clock time, including overnight shifts.

Example · 10:30 PM → 6:15 AM next day = 7h 45m

How it works

Example week
  • Mon8:00 AM – 5:30 PM, 1h break8h 30m
  • Tue8:00 AM – 5:30 PM, 1h break8h 30m
  • Wed8:00 AM – 5:30 PM, 1h break8h 30m
  • Thu, FriSame shift17h 00m

Total worked42h 30m

Every result shows how the total was built. Formulas and limits are published, so you can check the math. Overtime and gross pay are estimates based on settings you control.

  1. Enter

    Add times, durations or values. Labels stay visible and examples are one click away.

  2. Calculate

    Select Calculate. The result is worked out on your device, with a breakdown of every step.

  3. Copy or export

    Copy the summary, export CSV, or print a clean time card.

See calculation methodology →