Time Calculator

Add durations, subtract with a minus sign, or compare two clock times across midnight.

Runs in your browser — nothing is uploaded
Calculate

—

How to use Time Calculator

  1. Choose between two times or adding durations.
  2. Enter the times (overnight shifts work) or paste durations.
  3. Read the total in hours and minutes, decimal hours and optional pay.

Example: 1:30:15 − 0:15:30 + 0.5 decimal hours = 1:44:45.

Questions

How do I subtract a duration?

Put a minus sign before an entry. Use H:MM:SS for seconds or decimal hours; elapsed clock-time mode treats an earlier end as the next day.