Calculate precise date differences with comprehensive breakdown including months, weeks, days, business days, and weekends. Perfect for age calculations, project planning, loan terms, and contract durations with accurate results.
Calculate months, days, and time periods between any two dates
Follow these simple steps to calculate precise time periods between any two dates
Choose your start and end dates using the date picker. The calculator handles any date range from days to decades.
Choose whether to include the end date in your calculation based on your specific needs and use case.
Get comprehensive breakdown including days, weeks, months, years, business days, and weekend count.
Professional-grade features for accurate date calculations and planning
Get detailed results including exact months, years, weeks, business days, and weekend count for complete analysis.
Real-time date difference calculations with immediate display of all relevant time measurements.
View results in various formats including exact decimals and whole numbers for different use cases.
Automatic calculation of working days excluding weekends for project planning and business applications.
Copy calculation results to clipboard for use in reports, spreadsheets, and documentation.
Fully responsive design works perfectly on all devices for date calculations anywhere, anytime.
Understanding different applications for date difference calculations
| Use Case | Include End Date | Focus Metric | Example |
|---|---|---|---|
| Age Calculation | No | Years & Months | Birth to today |
| Project Duration | Yes | Business Days | Start to deadline |
| Loan Term | Yes | Months | Loan start to end |
Get answers to common questions about date calculations and month differences
Enter your start and end dates, and the calculator will show the exact number of months, days, weeks, and years between them with precise calculations.
Total months counts complete months only, while exact months includes partial months as decimals for more precise calculations.
Business days exclude weekends (Saturday and Sunday) and count only Monday through Friday. Holiday exclusions are not included in the basic calculation.
This depends on your use case. For age calculations, typically don't include the end date. For duration calculations, you often do include it.
Yes! Enter your birth date as the start date and today's date as the end date to calculate your exact age in years, months, and days.
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