Time Between Dates
Calculate the exact time difference between two dates in days, hours, minutes and seconds. Free online date duration calculator — fast, accurate, and runs entirely in your browser.
How does the time between dates calculator work?
Enter a start date and an end date. The calculator computes the exact difference between the two dates, showing the result in days, hours, minutes and seconds. You can also include or exclude the end date from the calculation.
Does the order of dates matter?
No. If the end date is earlier than the start date, the calculator automatically swaps them. The result always shows a positive time difference.
Can I calculate time between two dates including hours and minutes?
Yes. Select date and time mode to include specific hours, minutes and seconds in your calculation. The result will show the complete duration broken down into days, hours, minutes and seconds.
Is my data safe?
Yes. All calculations happen entirely in your browser. No data is sent to any server, and nothing is stored or tracked.
Does it account for leap years and daylight saving time?
Yes. The calculator correctly handles leap years (366-day years) and varying month lengths (28, 29, 30 or 31 days) to ensure accurate results.
How many days are there between two dates?
The number of days depends on the specific dates. Enter your start and end dates in the calculator above to get the exact number of days, along with hours, minutes and seconds.
Can I calculate the number of working days between two dates?
This calculator shows the total calendar days between two dates. For working days (excluding weekends and holidays), you would need a separate business days calculator.
What is the difference between elapsed time and duration?
Elapsed time refers to the actual time that has passed between two events. Duration is the total length of time an event or period lasts. This calculator can compute both — simply enter the relevant start and end dates.
How do I calculate the time between dates in different time zones?
This calculator uses the dates and times as entered. To handle time zones, convert both dates to the same time zone first (e.g., UTC), then enter them into the calculator.
Can I copy the result?
Yes. Hover over the summary result at the top and click the copy button that appears to copy the formatted result to your clipboard.
Is this calculator free to use?
Yes, this calculator is completely free. No registration is required, and you can use it as many times as you need.
Does it work on mobile devices?
Yes. The calculator is fully responsive and works on smartphones, tablets, laptops and desktop computers without any app download.
How to Use Time Between Dates
Measure the exact duration between two dates in days, hours, minutes and seconds. The calculation runs entirely in your browser and the dates you enter never leave your device.
- Choose the beginning of the period in the "Start" date field.
- Choose the end of the period in the "End" date field.
- Read the broken-down difference in days, hours, minutes and seconds.
- Scroll to the "Totals" section to see the duration expressed as single total figures.
Use the "Totals" section when you need one number, for example total hours between two timestamps for a timesheet.
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