Date & Time Calculators
How many days until your holiday, which calendar week is it, how old am I? Our 5 date and time calculators answer it in seconds.
Age Calculator
Calculate your exact age: years, months, days, days lived & countdown
Calculate now →Calendar Week Calculator
Current week number, convert dates to ISO weeks, all weeks of the year with German public holidays
Calculate now →Days Calculator
Count the days between two dates, with working days by German state, date plus/minus days and countdown
Calculate now →Bridge Days Calculator
Find the best bridge days in Germany for 2026, 2027 and 2028: optimal leave combinations, all public holidays by state with dates, also for part-time and a four-day week
Calculate now →Time Zone Converter
Convert times between more than 60 cities, with daylight saving time and a meeting planner
Calculate now →Calculating with dates and times
Leap years, public holidays per German state and daylight saving time make date maths error-prone. Our calculators handle all of it – from the days calculator with working days to the ISO 8601 calendar week and time differences between more than 60 cities.
All calculators are free, with no sign-up and no cookies.