Date & Time Calculators

Day calculator, calendar weeks, public holidays and time calculation

Day Calculator

Calculate the number of days between two dates or add days to a date.

Add or subtract days, weeks or months to a date.

Calculate your exact age in years, months and days. Until the next birthday.

Calculate the hours between two times. Ideal for working time and time tracking.

Find the calendar week for a date or the date for a calendar week.

All public holidays for your federal state. With bridge days and school holidays.

Optimize your vacation with bridge days. Maximum free days with minimum vacation days used.

Add or subtract time spans. Calculate hours, minutes and seconds.

All school holidays by federal state. Summer, autumn, winter holidays and more.

Calculate pace, speed and finish time for running and cycling.

When does the clock change? Dates for summer and winter time in Germany.

Current moon calendar with moon phases. New moon, full moon and waxing/waning moon.

Calculate sunrise and sunset for your location. With day length.