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

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

Use timeanddate.com's Date Calculator API to calculate dates or time spans, accounting for working days and days off (weekends & …

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

Check out our eclipse maps and animations and find local times for eclipses and planet transits all over the world.

Tools Years with Same Calendar as 2026 Customization Forms Customize this calendar–large – advanced form with more choices …

Moon phases for 2026 or any year. New Moon and Full Moon calendar with precise times and simulation of the Moon phase today. …

Choose tonight or another date and see which planets are shining in the sky above you or anywhere else.

Current local time in Japan – Date. Get Date's weather and area codes, time zone and DST. Explore Date's sunrise and sunset, …

Weather forecast & current weather worldwide. See temperatures and weather conditions right now, and rank cities to find the …