Time Duration Calculator

🕒 Time Duration Calculator

How to use the time duration calculator

To find out how much time has passed between two moments, simply enter your start time and end time into the calculator. It will automatically calculate the difference in hours and minutes. The calculator supports both 12-hour (AM/PM) and 24-hour formats, so you can use whichever is more familiar.

For example:

• Start time: 09:15 AM
• End time: 02:45 PM
• Result: 5 hours 30 minutes

What is time duration?

Time duration refers to the amount of time between two specific points. It tells you how long something lasted — whether it’s a meeting, a commute, a workout, or a nap. Time can be measured in hours, minutes, and seconds, but manually figuring out the exact difference can be tedious and prone to mistakes. This calculator makes it effortless.

How this calculator helps in daily life

This tool is useful in many everyday situations:

• Track how long you worked between clock-in and clock-out
• Measure study session times or focus blocks like Pomodoro
• Calculate how much time you’ve spent on a hobby or side project
• Plan travel by knowing exact driving or waiting durations
• Know how long a movie or event lasted
• Log your gym session length for fitness tracking

Whether you're working, learning, or planning your day, this calculator saves time and helps you stay accurate.

Can it calculate overnight time?

Yes, this calculator works even if your end time is on the next day — like from 10:00 PM to 6:00 AM. It correctly calculates duration that spans across midnight.

Can I use 24-hour format?

Absolutely. You can enter time in 24-hour format like 13:30 or 21:45. The calculator will still give you the same accurate result.

Is this tool useful for freelancers or remote workers?

Yes. If you need to log billable hours, track client work, or calculate how much time you spent on a task, this tool makes it simple. It's a must-have for time tracking.