Date Difference Calculator
Count the years, months, days and working days between two dates.
Add or Subtract Days
Start from any date and add or subtract days, weeks, months or years.
Your files stay with you. Your files never leave your browser. This tool runs on your device: nothing is uploaded to our servers, so there is nothing for us to store or see.
How to use it
- Pick the start date and Add or Subtract.
- Enter the years, months, weeks and days.
- Read the resulting date and the day of the week.
Questions people ask
What happens when I add a month to the 31st?
If the next month is shorter, the date is pulled back to its last day. 31 January plus one month is 29 February in a leap year and 28 February in other years.
Can I count only working days?
Yes. Tick the box and the weeks and days are counted on Monday to Friday only. Public holidays are not skipped.
Can I use it for a notice period or invoice due date?
Yes. Start from the date you gave notice or issued the invoice and add 30, 60 or 90 days. Check your contract on whether calendar or working days apply.
Want this inside your own account?
Marketiism keeps your invoice numbers, GST reports, UPI payment links and WhatsApp reminders in one place. Leave your details and we'll call to set it up for your business, or start the trial yourself.
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