Numbers, Dates, and Time: The German Patterns That Trip Up Beginners

German numbers are one of the most learner-friendly parts of the language — once you know 1–19 and the tens, the rest builds predictably. Dates are a small extra step on top of that. But the German clock system is a genuine surprise: it references the upcoming hour, not the current one, which means halb drei — "half three" — is 2:30, not 3:30. Getting this wrong when someone tells you a meeting time is the kind of mistake that matters.

Cardinal Numbers 1–100

The tens follow a clean pattern from 30 onward: dreißig (30), vierzig (40), fünfzig (50), sechzig (60), siebzig (70), achtzig (80), neunzig (90), hundert (100).

Numbers between the tens are constructed as ones + und + tens — units before tens, joined with und:

This is the reverse of English ("twenty-one" vs. einundzwanzig — literally "one-and-twenty"). The unit always comes first. The entire compound is written as one word.

Large Numbers

Ordinal Numbers — First, Second, Third

Ordinal numbers (first, second, third…) are formed by adding a suffix to the cardinal number. They then take adjective endings like any other adjective.

Numbers 2–19: add -t- then the adjective ending.

Numbers 20 and above: add -st- then the adjective ending.

In writing, ordinals are shown with a period after the number: 1. = erste/r/s, 2. = zweite/r/s.

Dates

German dates use ordinal numbers. The day comes first, then the month, then the year — day/month/year order, the opposite of American English.

When speaking a date out loud, the day is in the accusative (for "on the...") or dative (after am):

Written dates: 12.03.2026 or 12. März 2026. Day and month are separated by a period. The month can be written as a number or spelled out.

The months:

All months are masculine: der Januar, der März, der Oktober.

Years

Years are read differently depending on the century.

1100–1999: read as hundreds — neunzehnhundert for 1900, neunzehnhundertneunundneunzig for 1999. Exactly like English "nineteen ninety-nine."

2000 onward: two options. Either zweitausend (two thousand) or, from 2100 onward, the hundreds pattern again.

To say "in a year" use im Jahr or just the year alone:

Telling the Time — Official and Everyday

German has two time systems that coexist: the official 24-hour system and the informal everyday system. Both are common — you need to understand both.

Official / 24-hour system (timetables, announcements, formal contexts):

In the official system: say the hour, then Uhr, then the minutes. Straightforward.

Everyday / 12-hour system (conversation, informal):

This is where it gets interesting.

The Halb System — Why 'Halb Drei' Is 2:30

In everyday spoken German, half hours are expressed by referencing the next hour — not the current one. Halb drei means "halfway to three" — which is 2:30.

Viertel — Quarter Past and Quarter To

Quarter hours also reference the upcoming hour in the everyday system:

* The Viertel drei / dreiviertel drei system (without nach/vor) is used in eastern Germany and Austria. Viertel nach / Viertel vor is more common in western Germany and is understood everywhere. Both are correct.

Minutes before and after the hour:

That last one — fünf vor halb — is very common in spoken German and completely opaque without context. It means five minutes before the half hour. Fünf vor halb neun = 8:25 (five minutes before 8:30, which is "half nine").

Asking for the Time

Useful Time Expressions