Date calculator add or subtract days, months, or years to or from a specific date. Overview of holidays and many observances in the united states during the year 2026 Date calculator api find a specific business date and calculate the working days in a given period.
0 days it is 0 days from the start date to the end date, but not including the end date. Calculate years, months, or even seconds, or count the days to your deadline. The date calculator adds or subtracts days, weeks, months and years from a given date.
Explore our calculator & converter tools for date, time, astronomy, and more. Tuesday, january 13, 2026 to, but not including tuesday, january 13, 2026 result: