Time Calculator

Calculate Time Differences in a Snap!

Calculate time differences, add or subtract time, and convert between time formats with our free online time calculator.

Time Difference Calculator

Calculate the duration between two times in hours, minutes, and seconds.

First Time:

: :

Second Time:

: :

Time Difference Results

Total Difference:

In Hours:

In Minutes:

In Seconds:

Add/Subtract Time

Add or subtract hours, minutes, and seconds from a specific date and time.

Date & Time:

Hours:

Minutes:

Seconds:

Result

New Date & Time:

Date & Time Difference

Calculate the duration between two specific dates and times.

First Date & Time:

Second Date & Time:

Date & Time Difference Results

Total Difference:

In Days:

In Hours:

In Minutes:

In Seconds:

Frequently Asked Questions

1. How do I calculate the difference between two times?

Use the first calculator tool. Enter hours (1-12), minutes (0-59), seconds (0-59) and select AM/PM for both times, then click "Calculate Difference" to see the duration between them in various units.

2. Can I add or subtract time from a specific date?

Yes, use the second calculator tool. Enter your base date and time, then specify the hours, minutes, and seconds you want to add or subtract.

3. How accurate is the date and time difference calculator?

Our calculator is very accurate, accounting for all days, hours, minutes, and seconds between two points in time, including leap years and daylight saving time changes.

4. Can I calculate time differences across different time zones?

This calculator uses the local time you input. For time zone calculations, you would need to first convert both times to the same time zone before using this tool.

5. Is this time calculator free to use?

Yes, this is a completely free online tool with no registration required.