Date Calculator
Calculate the number of days, weeks and months between two dates, or add/subtract a number of days from a date.
Days
0
Weeks
0.0
Months (approx.)
0.0
Direction
End date is after start date
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How to use the Date Calculator
Choose 'Difference between dates' to calculate the gap between two dates, or 'Add/Subtract days' to shift a date forward or backward.
Enter your date(s) and, for add/subtract mode, the number of days.
The result updates instantly.
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Frequently Asked Questions
Frequently asked questions about the Date Calculator
Does the difference include or exclude the start date?+
The calculator counts full calendar days between the two dates (exclusive of one endpoint), which matches how most people naturally count 'days until' something.
Can I subtract days to find a past date?+
Yes, enter a negative number of days in add/subtract mode, or use the dedicated subtract option, to move backward from a date.
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