Free Date Calculator — Add or Subtract Days, Weeks, Months
Choose a start date and how much to add or take away.
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How to do it
- 1Choose your settings
Fill in the details or pick the options you need.
- 2See the result
The preview updates right away as you change things.
- 3Download or save it
Save the result to your device. Nothing is sent to or stored on a server.
About this tool
Find a future or past date. Add or take away years, months, weeks and days from any date to work out a due date, a deadline, a 90-day period or a warranty end. Month ends are handled sensibly: adding one month to 31 January gives the last day of February.
Frequently asked questions
What is 90 days from today?
Choose today as the start date, leave Add selected and type 90 in the days box.
How are month ends handled?
If the next month is shorter, you get its last day.
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