Calculate elapsed time between two clock times.

Add or subtract a duration from a time.

Convert seconds, minutes, hours and days.

Canonical folder: /time-duration-calculator/

Choose the task on Page 1.

Enter clock times on Page 2.

Enter duration or conversion values on Page 3.

Read the answer and working on Page 4.

Elapsed mode subtracts start time from end time.

The calculator converts both times into minutes first.

Use Next Day when the end time is after midnight.

Example: 09:15 to 14:05 is 4 hours 50 minutes.

Add mode finds an end time from a start time and duration.

Subtract mode works backwards from an end time.

Duration hours and minutes are turned into total minutes.

Results wrap around midnight when needed.

Workers use it for shifts, logs and task timing.

Students use it for study blocks and revision sessions.

Travellers use it for journeys and waiting periods.

Anyone can use it to avoid mental time arithmetic.

Useful for time duration calculator and elapsed time calculator searches.

Covers time between two times, add time calculator and finish time calculator.

Conversion support covers seconds, minutes, hours and days.

SEO copy stays off the calculator screens to avoid crowding.

What format? Use HH:MM, such as 09:15.

Overnight? Set Next Day to YES.

Can I type 0915? Yes, it becomes 09:15.

Decimals? Convert mode accepts decimal values.

Use Page 662 for comparing two times.

Use Page 663 for hours worked and timesheets.

Use Page 664 when unpaid breaks must be deducted.

Use Page 665 to find shift overlap.

https://teletext-tools.com/time-duration-calculator/