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Add/Subtract Days

Add or subtract days from a date to find future or past dates.

Tips for Using This Calculator

• All calculations are performed instantly as you type

• Use the copy button to save your results

• Results are automatically shared in the URL for easy sharing

• This calculator works completely offline after loading

How do I calculate a date 90 days from today?

Can I calculate business days only?

Date Difference Calculator

Calculate the difference between two dates in years, months, days, and more.

Age Calculator

Calculate your exact age in years, months, days, and total days lived.

Time Zone Converter

Convert time between different time zones around the world.

Last updated: 11/26/2025