Date Calculator
Add or subtract days, weeks, months, or years from any date — or count the days between two dates.
Start date
Direction
Unit
Result
Tuesday, October 13, 2026
90 days after Jul 15, 2026
Days from today
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Days ago
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Weeks from today
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Weeks ago
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Months from today
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Months ago
Years from today
Years ago
Hours from now
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Hours ago
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Minutes from now
About the date calculator
This calculator handles the tricky parts of date math — leap years, different month lengths, and weekends — so you get the exact date every time. Use it for due dates, deadlines, waiting periods, anniversaries, and more.
Frequently Asked Questions
- How do I add days to a date?
- Pick a start date, choose 'plus', enter the number of days, and the result updates instantly with the day of the week.
- Can it subtract dates too?
- Yes. Switch to 'minus' to go backward in time, or use the Days Between tab to count the days between two dates.