Date Add & Subtract Calculator

All tools

Add or subtract years, months, weeks and days from any date to find the resulting date, its weekday, ISO format and how many days it is from today.

Resulting date –
Day of week –
ISO date –
Days from today –
Years and months are added first, then weeks and days. Month-end dates roll over naturally, so adding a month to Jan 31 may land in early March.
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