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Precision · Instant · Private

Add or Subtract Days

Find a future or past date by adding or subtracting days, weeks, or months from any starting date. Great for deadlines and reminders.

SYSTEM ● ONLINE · LOCAL COMPUTE · ZERO UPLOAD
UNIT // DATE.MATHLIVE
Result date
Result
Day of week
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Quick Answer

How do you add days to a date?

// Answer

Take the starting date and move it forward (or backward) by the chosen number of days, weeks, months, or years. The tool accounts for different month lengths and leap years automatically, so adding 30 days to January 15 gives February 14.

Why use this tool

Find any date fast

Work out deadlines, due dates, reminder dates, return-by dates, or anniversaries. Choose days, weeks, months, or years, and see the exact resulting date and which day of the week it falls on.

FAQ

Frequently asked questions

Yes, date math automatically handles leap years and varying month lengths.
Yes, choose "Subtract" to find a past date.
Days, weeks, months, and years.
Yes, calculations run in your browser.
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