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Date Calculator Add or subtract days, months, or years to or from a specific date.
Date Calculator: Add to or Subtract From a Date
The Date Calculator adds or subtracts days, weeks, months and years from a given date.
Date Duration Calculator: Days Between Dates
Date Calculator API Find a specific business date and calculate the working days in a given period.
The World Clock — Worldwide - timeanddate.com
World time and date for cities in all time zones. International time right now. Takes into account all DST clock changes.
Calculators & Converters Overview - timeanddate.com
Explore our calculator & converter tools for date, time, astronomy, and more. Calculate years, months, or even seconds, or count the days to your deadline.
Calendar 2026 - timeanddate.com
Calendars – online and print friendly – for any year and month and including public holidays and observances for countries worldwide.
Calculate Duration Between Two Dates – Results
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 date.
Year 2026 Calendar – United States - timeanddate.com
United States 2026 – Customized Calendar with American holidays. Yearly calendar showing months for the year 2026. Calendars – online and print friendly – for any year and month
Week Number Calculator: What Week of the Year Is It?
Calculate the week number of any date and find the beginning and end date of a specific week of any year.
Business Days Calculator – Count Workdays
Date Calculator API Find a specific business date and calculate the working days in a given period.