Date Calculator
Days between dates, add or subtract days and working days. Free, no sign-up, works in your browser.
Days between two dates
Add or subtract
🔒 100% private — processing happens in your browser. Nothing is uploaded.
How to use the date calculator
- Pick two dates to see the number of days, weeks, working days and the exact years-months-days difference.
- Or choose a start date and add or subtract days, weeks, months, years or working days.
- Results update instantly as you change any field.
Count the days until a holiday, a deadline or a trip, work out a notice period, check how many working days a project has, or find the date 90 days from today for a visa or warranty. Working days skip Saturdays and Sundays (public holidays are not included because they differ by country). Calculations use calendar dates only, so daylight-saving changes never cause off-by-one errors.