Does this support crossing midnight?

Yes. If the end time is earlier than the start time, the calculator assumes the duration spans midnight. For example, 22:00 to 06:00 = 8 hours.

What format should I use?

Use 24-hour format. Hours from 0–23 and minutes from 0–59.

Can I calculate durations longer than 24 hours?

This calculator is designed for durations within a 24-hour period. For longer durations, use the Date Difference Calculator.

Common uses include calculating work shifts, cooking times, travel durations, and event planning.

Time Duration Calculator

Calculate the duration between two times in hours and minutes. Supports crossing midnight for overnight durations.

Start Time (24h)

Hours (0-23)

Minutes (0-59)

End Time (24h)

Hours (0-23)

Minutes (0-59)

Learn More

Understanding Time Calculations and Date Differences

Learn how this calculation works

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How to Use

Step 1: Enter the start time (hours and minutes in 24-hour format).

Step 2: Enter the end time.

If the end time is earlier than the start time, the calculator assumes it crosses midnight.

How It Works

The duration is calculated by converting both times to minutes since midnight and finding the difference. If the result is negative (end time is earlier), 24 hours (1440 minutes) is added to handle overnight spans.

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Frequently Asked Questions

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