How do I calculate the exact time between two dates?

Enter your start and end date/time and click 'Calculate.' You'll get a precise breakdown in all major time units.

Can I include the end date in the result?

Yes! Simply check the 'Include End Date' box to count the final date.

What if my start date is after my end date?

The calculator requires the end date to be after the start date to provide accurate results.

Is this tool accurate?

Yes — it uses Moment.js for precise date and time calculations, even accounting for leap years and time gaps.

Time Duration Calculator – Calculate Time Between Two Dates

Calculate Time Between Two Dates

Need to know how much time has passed between two dates—or how much time remains until a certain day? This tool helps you figure that out in just a few clicks. Whether you're tracking a deadline, comparing time between events, or simply curious, you'll see the full breakdown in years, months, days, and more.

How to Use the Time Duration Calculator

Select the starting date and time from the calendar.
Choose the end date and time you want to compare it to.
Check the box if you want to include the final day in the result.
Click the “Calculate Duration” button to view the result instantly.

What Is Time Duration?

Time duration is the length of time between two moments. It could be days between appointments, years between birthdays, or the total time between two milestones. This calculator gives you a complete view—from years down to seconds.

What Can This Time Calculator Show?

The results include:

Years, months, and days
Hours, minutes, and seconds
Total time in days, weeks, hours, minutes, or seconds

When Would You Use a Time Duration Calculator?

Checking how long it’s been since a past event
Figuring out how much time remains before an upcoming deadline
Planning out timelines for work or personal projects
Measuring time off, anniversaries, or countdowns

Frequently Asked Questions

How do I calculate the time between two dates?

Just enter your start and end dates using the calendar picker. Hit “Calculate,” and you'll see the time difference broken down into multiple units.

What does ‘Include End Date’ mean?

This option adds the final day to the total. For example, from March 1 to March 2 is one day without it, but two days if you include the end date.

Can I use this to calculate future dates?

Yes, this calculator works with both past and future dates. You can use it to plan ahead or look back.

Is this calculator accurate?

Yes. It uses Moment.js behind the scenes to handle dates, which means it correctly accounts for leap years, time zones, and exact time differences.

Time Duration Calculator

Result