Date Calculator
Count days between two dates, or add and subtract days from any date
Enter your data in the input fields
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No data is stored or saved
The date calculator counts the exact number of days between two dates, including a business day count, and can add or subtract any number of days from a date to find the resulting calendar day and weekday.
Deadlines, notice periods, visa windows, project timelines and pregnancy weeks all come down to date arithmetic that is easy to get wrong by hand. Month lengths and leap years make mental counting unreliable, and the calculator applies real calendar rules.
- Count days remaining until a deadline, event or trip
- Work out notice periods and contract end dates
- Find what date it will be 30, 60 or 90 days from today
- Count business days for delivery and processing estimates
- Business day counts exclude weekends but not public holidays, which vary by country
- For legal deadlines, confirm whether the count includes the start day itself
- Use the weekday shown in the result to spot deadlines that land on a weekend
How are the days between two dates counted?+
The tool counts full calendar days between the two dates. The order does not matter, and leap years and different month lengths are handled by real calendar arithmetic.
What counts as a business day?+
Monday through Friday. Public holidays are not excluded because they differ by country and region, so subtract any holidays relevant to your case.
Can I find the date 90 days from today?+
Yes. Use the add or subtract tab, keep today's date, enter 90 and the tool shows the exact calendar date and weekday 90 days ahead, and also 90 days back.
Does the calculator handle leap years?+
Yes. All calculations use the actual calendar, so February 29 and leap year spans are counted correctly.
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Having trouble with this tool? Check our help section or contact support for assistance.
Free online date calculator tool by UrDailyTools. No registration required, works in your browser. Updated regularly for accuracy and performance.