Date Calculator

Add/Subtract

Date Difference

Start Date:

Operation:

Add Subtract

Days:

Weeks:

Months:

Years:

From Date:

To Date:

About Date Calculations

This calculator helps you perform two types of date calculations:

1. Add/Subtract Dates

Calculate a future or past date by adding or subtracting days, weeks, months or years from a starting date. This is useful for:

• Project planning and deadlines
• Calculating expiration dates
• Determining anniversary dates
• Planning events in the future

2. Date Difference

Calculate the exact number of days, weeks, months and years between two dates. This is useful for:

• Calculating age or time since an event
• Determining project durations
• Tracking time between milestones
• Calculating interest or penalties

Important Notes:

• Month calculations account for varying month lengths
• Leap years are automatically accounted for
• Results include both full periods and remaining days