Calculator Calendar 2025. Date calculator is a simple date calculation tool to add or subtract from a date with years, months, days, hours and minutes to a date in various date formats. 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.

Use this calculator to add or subtract years, months, weeks or days to or from a specific date. This calculator computes the required minimum distribution (rmd) of your retirement accounts.