Your Result
About the Date Calculator
This Date Calculator computes the difference between two dates, adds or subtracts days from any date, and counts business days. You enter your dates and get an exact result in days, weeks, months, or years, depending on the mode you choose.
Calculations follow Gregorian calendar rules: each date converts to a day count, the difference comes from simple subtraction, and business day counts skip Saturdays and Sundays. You provide a start date, an end date, or a start date with a number of days to add or subtract. Practical tip: confirm whether the end date is included in the difference, since counting conventions vary.
- Choose a mode: date difference, add or subtract days, or business days.
- Enter the start date, then the end date or the number of days.
- Read the result and adjust the inputs for another scenario.