➕
Free Add or Subtract Time Online
Add or subtract any duration from a date and time to get the result.
Frequently Asked Questions
How do I add hours to a date?
Set your base date and time, select "+ Add", enter the number of hours, choose "Hours" as the unit, and the result appears instantly.
How do I find a date 90 days from now?
Set today as the base date, select "+ Add", enter 90, and choose "Days". The result shows the date 90 days in the future.
Can I subtract months from a date?
Yes. Select "− Subtract", enter the number of months, and choose "Months". The calculation uses average month lengths (30.4375 days).
Is there a limit to how much time I can add or subtract?
No practical limit — you can add or subtract thousands of years if needed.