📅Date Calculator
Calculate differences between dates, add or subtract time, count business days, and get detailed day information.
Date Calculation
How to Use This Calculator
This date calculator offers four different types of calculations to help you work with dates efficiently.
- Select the calculation type: Date Difference, Add/Subtract Time, Business Days, or Day Information
- Enter the date(s) using the day, month, and year fields
- For add/subtract calculations, specify the amount and time unit
- Click "Calculate" or wait for results to update automatically
Date Calculator Guide
📊 Calculation Types
- Date Difference: Calculate the time span between two dates
- Add/Subtract Time: Add or subtract time from a specific date
- Business Days: Count working days excluding weekends
- Day Information: Get detailed information about any date
🎯 Pro Tips
- • Use business days for project planning and deadlines
- • Date difference helps with age calculations and timelines
- • Add/subtract is perfect for scheduling and due dates
- • Day information helps with event planning by weekday
Common Date Calculations
📅 Business Use
- • Project deadlines
- • Contract durations
- • Billing periods
- • Employee tenure
- • Service agreements
🏠 Personal Use
- • Age calculations
- • Anniversary planning
- • Vacation scheduling
- • Event countdowns
- • Milestone tracking
⚖️ Legal & Finance
- • Statute of limitations
- • Loan terms
- • Investment periods
- • Legal deadlines
- • Payment schedules
Frequently Asked Questions
How does the calculator handle leap years?
The calculator automatically accounts for leap years. February has 29 days in years divisible by 4, except century years not divisible by 400.
Does the business days calculation include holidays?
The standard business days calculation excludes Saturdays and Sundays, but does not exclude national holidays. For accurate project planning, manually add relevant holidays to your total.
How do I use this to calculate deadlines?
Use "Add/Subtract Time" and select the start date. Add the required number of days/weeks/months to find the deadline date. For work deadlines, use "Business Days" first to determine the number of working days.
About This Tool
Disclaimer: This calculator provides estimates for informational purposes only. Results may vary based on individual circumstances.