Add Days to Date

Add Days to Date

Add or subtract a specified number of days to/from any date.

How it works

This calculator takes a date and adds (or subtracts if negative) a specified number of days to it. The result automatically handles:

• Month boundaries (e.g., January 31 + 1 day = February 1)
• Year boundaries (e.g., December 31, 2024 + 1 day = January 1, 2025)
• Leap years (February 28/29 transitions)

Use cases

• Project deadline calculations
• Delivery date estimations
• Event planning (X days before/after an event)
• Subscription renewal dates
• Travel itinerary planning

Example

Starting from August 27, 2025:

• Add 7 days → September 3, 2025 (Wednesday)
• Add 30 days → September 26, 2025 (Friday)
• Subtract 10 days → August 17, 2025 (Sunday)