Date & Time Calculator
How many days are between two dates?
Total Days
0
Same day
Weeks
0.0
approximate
About This Tool
How to Use
- Choose a calculation mode from the three tabs: Days Between, Add/Subtract, or Business Days.
- Enter your start and end dates using the date pickers.
- For Add/Subtract mode, choose days, weeks, or months and a positive or negative amount.
- Results appear instantly below the inputs.
Common Use Cases
- Calculate how many days until a deadline or event
- Find a future or past date by adding or subtracting time
- Determine the number of working days between two dates for project planning
Tips & Tricks
- Business days mode excludes Saturdays and Sundays but does not account for public holidays.
- Use negative values in Add/Subtract mode to go back in time.
Related Tools
Stopwatch
A precise stopwatch with lap timing, keyboard shortcuts, and local storage persistence. Track intervals, export data, and keep your timing history across sessions.
Pomodoro Timer
Stay focused with a customizable Pomodoro timer. Set work and break intervals, track completed sessions, and boost your productivity with the proven time-boxing technique.
Temperature Converter
Convert temperatures between Fahrenheit, Celsius, and Kelvin in real-time. Simple, fast, and accurate for science, cooking, or everyday conversions.
Loan & Mortgage Calculator
Calculate monthly payments, total interest, and view a full amortization schedule for any loan. Supports fixed-rate mortgages, auto loans, and personal loans.