Date Add / Subtract Calculator

'90 days from today is…' — add or subtract days, weeks, months or years.

Free to use · No account required

Enable JavaScript to use the interactive Date Add / Subtract Calculator. The input fields and calculations run in your browser.

How it works

Month arithmetic clamps to the end of the month: 31 Jan + 1 month = 28/29 Feb, never 3 Mar.

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