Find a specific business date and calculate the working days in a given period. The Date Calculator adds or subtracts days, weeks, months and years from a given date.

This free date calculator computes the difference between two dates. It can also add to or subtract from a date. Both can deal with business days and holidays.

Just enter the date, the number of days to add/subtract and you will get the result. This online calculator adds or subtracts a given number of days to or from a given date.

This simple Date calculator allows you to add/subtract days from a date, or count days between days and after each calculation get the most accurate result.

A handy day adder / date calculator to add days to any given date. If you want to know what date it will be N days from today (date plus days), or what date it was N days ago (date minus days), this calendar add days calculator is for you.

This tool lets you add or subtract any combination of years, months, weeks, and days from a starting date. Select your starting date using the calendar picker, choose whether to add or subtract, enter the number of each time unit you want, and click Calculate.

Add or subtract days, weeks, months, or years from any date with our free online calculator and get the exact result instantly.

Add or subtract any number of calendar days from a start date to find the resulting date, its day of the week, and the day of the year. Updated June 2026.

A date calculator is an automated program used to add or subtract time to or from a specified date. Date calculators use programming functions and formulas to calculate time before or after a chosen date.

Free online Date Calculator. Add or subtract days, weeks, months, and years to any date. Instantly find the resulting day of week, week number, and days remaining.