Date Calculator
Add or subtract time from a date.
How to Use the Date Calculator
1
Select a 'Start Date' using the date picker.
2
Choose whether you want to 'Add' or 'Subtract' time.
3
Enter the numerical value and select the unit (Days, Weeks, Months, or Years).
4
The resulting date will be calculated and displayed automatically.
Frequently Asked Questions
Does this calculator handle leap years?
Yes, all date calculations correctly account for leap years.
What happens if I add a month to January 31st?
The calculator is smart about month lengths. Adding one month to Jan 31st will result in Feb 28th (or 29th in a leap year), the last day of the following month.
Is this tool free?
Yes, this date calculator is completely free to use.