Date Add Subtract Calculator
Add or subtract days, weeks, months, or years from any date. Perfect for planning future dates, calculating deadlines, and complex date math operations.
Date Math Calculator
Perform date arithmetic with multiple operations
Date Operations
Common Use Cases
Example Calculations
How to Use the Date Add Subtract Calculator
Quick Steps
- 1. Enter your base date
- 2. Choose to add or subtract time
- 3. Enter the amount and unit (days, weeks, months, years)
- 4. Add multiple operations if needed
- 5. Click "Calculate Date" to see results
- 6. Use batch mode for multiple calculations
Advanced Features
• Multiple operations in sequence
• Quick preset calculations
• Batch processing mode
• CSV export for bulk results
• Copy results to clipboard
• Detailed difference analysis
Frequently Asked Questions
Can I perform multiple operations on the same date?
Yes! You can add multiple operations like "+3 months -5 days" to perform complex date calculations in sequence.
How accurate are month and year calculations?
Our calculator handles varying month lengths and leap years accurately using the date-fns library, ensuring precise calculations even for edge cases.
What is batch mode used for?
Batch mode allows you to perform the same operation on multiple dates and export the results as a CSV file, perfect for project planning and bulk calculations.
Can I calculate dates in the past?
Absolutely! Use the subtract operation to calculate dates in the past from any given base date.