Date Difference Calculator

Count the days between two dates, or add and subtract time from a date.

Days between two dates

Total days
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Years, months, days
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Weeks
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Working days (Mon–Fri)
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Add or subtract from a date

Result
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Common uses

  • Notice period – find your last working day (e.g. add 90 days to your resignation date).
  • Loan and FD tenure – count the exact days between two dates for interest calculations.
  • Project deadlines – count working days, excluding weekends.
  • Countdowns – days left until an exam, wedding or holiday.

Should I include the end date?

By default the calculator counts the days between the dates (1 Jan to 2 Jan = 1 day). Tick “Include end date” when both the first and last days count, such as leave applications or hotel bookings by calendar day.

Note: working days exclude Saturdays and Sundays only. Public holidays are not removed.

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