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

The Duration Calculator calculates the number of days, months and years between two dates.

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

World time and date for cities in all time zones. International time right now. Takes into account all DST clock changes.

Calculate local times for sunrises, sunsets, meridian passing, Sun distance, altitude and twilight, dusk and dawn times.

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

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

Want to know if the digits in a date are sequential, repetitive, or can be read the same way forwards and backwards? Use the Date Pattern Calculator to find out unique and interesting mathematical patterns …

The timeanddate.com Time Zone Map gives an overview of current local times around the world. It takes into account daylight saving time (DST) changes worldwide.

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