Free date calculator
Days between two dates, and the date after adding or subtracting days, weeks or months. Runs in your browser; nothing you type is sent to us.
Handy for payment due dates, notice periods, offer end dates and event plans.
Using the Date calculator in three steps.
- Choose whether to find the gap between dates or to add or subtract time.
- Enter the dates or the amount.
- Read the answer in days, weeks and months.
About the Date calculator.
Are both dates counted?
The gap counts the days from one date to the other. Add one day if you want to count both ends.
How are months added?
The same day of the month is kept where possible, and the last day is used if the month is shorter.
Is it affected by my time zone?
No. The tool uses calendar dates only.
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