Add Or Subtract Dates Calculator
Move a calendar date by years, months, weeks and days with reliable end-of-month handling.
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What Is the Add Or Subtract Dates Calculator?
This calendar workbench adds or subtracts combined year, month, week and day intervals from a starting date. It reports the resulting weekday and the actual calendar-day movement.
How It Works
Choose a starting date and operation, then enter any combination of years, months, weeks and days. Month and year changes are applied first with end-of-month clamping.
When to Use It
Use it for deadlines, renewal dates, project milestones and future or past date offsets.
Frequently Asked Questions
- What Happens To January 31 Plus One Month?
- The date clamps to the final valid day of February before any entered weeks or days are applied.
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