Add or subtract days, weeks, months, or years from any starting date with reliable month-end correction. Useful for calculating contract renewals and deadlines.
Pick Base Date
Choose the initial starting date.
Enter Interval
Specify the number of days, weeks, months, or years to add or subtract.
Get Adjusted Date
Read the calculated target date with automatic leap year and month-end adjustments.
When adding months to end-of-month dates (e.g. adding 1 month to January 31), the tool automatically clamps the output to February 28 or 29.
Add or subtract any combination of days, weeks, months, and years in a single step to plan deadlines or track recurring milestones.
Leap year rules are applied automatically so February 29 is preserved accurately when applicable.
Yes, switch the operator to subtraction to calculate past anniversary dates or starting points.