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.

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

From and including: Sunday, January 11, 2026 To, but not including Sunday, January 11, 2026 Result: 0 days It is 0 days from the start date to the end date, but not including the end date.

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

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

Current local time in Malaysia – Kuala Lumpur. Get Kuala Lumpur's weather and area codes, time zone and DST. Explore Kuala Lumpur's sunrise and sunset, moonrise and moonset.

Current local time in Canada – Ontario – Ottawa. Get Ottawa's weather and area codes, time zone and DST. Explore Ottawa's sunrise and sunset, moonrise and moonset.

Current local time in Finland – Helsinki. Get Helsinki's weather and area codes, time zone and DST. Explore Helsinki's sunrise and sunset, moonrise and moonset.