Date Calculator - Calculate Date Differences & Working Days
Free online date calculator to find differences between dates, add or subtract days, and calculate working days. Fast, accurate, and easy to use.
What is a Date Calculator?
A date calculator is a powerful tool that helps you perform various date-related calculations. Whether you need to find the difference between two dates, add or subtract days from a specific date, or calculate working days for project planning, our date calculator makes it simple and accurate. Features include calculating precise differences between dates in years, months, and days, adding or subtracting any number of days, calculating working days (business days) excluding weekends, multiple result formats including weeks, hours, and minutes, and a user-friendly interface with instant calculations. Perfect for project planning and deadlines, age calculation, event planning, business contracts and agreements, and tracking anniversaries and subscriptions. All calculations happen in your browser for complete privacy.
Key Features
- Calculate precise differences between two dates in years, months, and days
- Add or subtract any number of days from a date
- Calculate working days (business days) excluding weekends
- Multiple result formats including weeks, hours, and minutes
- User-friendly interface with instant calculations
How to Use the Date Calculator
- Select the calculation mode (Difference, Add/Subtract, or Working Days)
- Enter the date(s) using the calendar picker
- For Add/Subtract mode, enter the number of days
- Click Calculate to see instant results in multiple formats
Common Use Cases
- Project Planning: Calculate project duration and deadlines
- Age Calculation: Find exact age in years, months, and days
- Event Planning: Count days until special events
- Business: Calculate working days for contracts and agreements
- Personal: Track anniversaries, subscriptions, and important dates
How to Use the Date Calculator
Our date calculator offers three powerful modes: Calculate the difference between two dates to see the exact duration in multiple formats. Add or subtract days to find future or past dates. Calculate working days for business planning by excluding weekends. Simply select your mode, enter the dates, and get instant accurate results.