Free Date Difference Calculator
Calculate the number of days, weeks and months between two dates.
What is the Date Difference Calculator?
Calculate the number of days, weeks and months between two dates.
It subtracts the start date from the end date in whole calendar days, optionally adding one if you count both end dates. The same span is also broken into years, months and days, weeks and days, hours, and Monday to Friday weekdays.
Hours, dates and records are small details that cause big arguments when they are missing. Keeping a clean log protects everyone involved.
How to use the Date Difference Calculator
Using the date difference calculator takes a minute or two. Your entries are saved in this browser, so you can come back later and carry on.
Step 1
Fill in the names, dates or hours in the rows, adding more where needed.
Step 2
Check the totals calculated at the bottom of the preview.
Step 3
Download or print the log and keep a copy with your records.
Tips for better results
Use the inclusive option when both the first and last day count, such as a hotel stay billed per day or a leave request. If you enter the dates in reverse, they are swapped for you.
Record entries on the same day while they are fresh.
Keep dated copies. They are useful for invoices and disputes.
Privacy and where your data goes
Everything you type into the date difference calculator stays on your own device. Zapxa does not receive your numbers or documents. If you clear your browser data, your saved entries will be removed, so download a PDF of anything you want to keep.
Frequently asked questions
Should I count the end date?
Leave it off for elapsed time, like days between 1 and 10 January being 9. Turn it on when both days count, which gives 10.
Does the weekday count include public holidays?
No. It counts Monday to Friday days in the range and does not subtract holidays. Use the business days calculator if you need to remove holidays.
Is the date difference calculator free?
Yes. It is free to use with no signup, no watermark and no usage limits.
Is my data private?
Yes. Your inputs are processed in your browser and saved only in its local storage. They are not uploaded to our servers.
Does it work on mobile?
Yes. Zapxa works on phones, tablets and desktops. Use the print button or download a PDF to keep a copy.
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- Attendance Tracker — Record who attended each day and count presents and absences.
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