Date Calculator Add or subtract days, months, or years to or from a specific date.

The Date Calculator adds or subtracts days, weeks, months and years from a given date.

Date Calculator API Find a specific business date and calculate the working days in a given period.

Explore our calculator & converter tools for date, time, astronomy, and more. Calculate years, months, or even seconds, or count the days to your deadline.

Calendars – online and print friendly – for any year and month and including public holidays and observances for countries worldwide.

Overview of holidays and many observances in the United States during the year 2026

Results of date calculator - which will allow you to add or subtract days, hours and minutes from a date.

Tools Years with Same Calendar as 2026 Customization Forms Customize this calendar–large – advanced form with more choices Customize this calendar – classic, basic form Change your …

From and including: Wednesday, January 14, 2026 To, but not including Wednesday, January 14, 2026 Result: 0 days It is 0 days from the start date to the end date, but not including the end …

Calculate the week number of any date and find the beginning and end date of a specific week of any year.