Date Calculator
Add or subtract years, months, weeks, days, hours, minutes, or seconds from any date. Perfect for deadline calculations, planning, and date math.
Configure the calculation above to see results
How to Add or Subtract Time
Quickly calculate future or past dates by adding or subtracting years, months, days, hours, and minutes.
1. Set Start Date
Choose your reference point. Use "Now" for real-time calculations.
2. Pick Duration
Use quick presets like "1 year" or type a custom string like "2w 3d".
3. Toggle Operation
Switch between adding or subtracting time to find future or past dates.
Complex Date Logic
Our algorithm correctly handles varying month lengths, leap years, and daylight saving time transitions.
Example: Adding 1 month to January 31st correctly results in February 28th (or 29th in a leap year).
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Frequently Asked Questions
Why Use Our Date Add/Subtract Calculator?
Quick Presets
One-click durations from 15 minutes to 1 year.
Custom Durations
Add or subtract any combination of time units.
Add or Subtract
Calculate future dates or find past dates.
Export & Share
Export to calendar apps or share results instantly.