30 Days After October 11 2025. Calculate the date that falls a certain number of days from a particular date, or include only business days or weekdays. 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.
Please, enter a start date and the number of days, weeks, months and years you want do add or subtract from it, and press calculate to see the resulting date. This online calculator adds date components to a given date.