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Numbers · time · date

Zahlen, Uhrzeit und Datum

German numbers, clock times and dates work like this: 21 = einundzwanzig, 10 Uhr, am 5. Mai.

Halb drei is not half past three, it is half past two. German counts the half hour toward the hour that is coming, not the one that has passed — the one place where your English instinct works backwards. Numbers, clock times and dates on one page.

01

The skeleton of a number

ShortcutTwo-digit numbers are read backwards: 21 = “one and twenty”. And halb drei is not half past three, it is half past two.

RangeRuleExample
0–12Learn by heart — short listnull · eins · zwei · drei · vier · fünf · sechs · sieben · acht · neun · zehn · elf · zwölf
13–19unit + zehndreizehn · vierzehn · fünfzehn · sechzehn · siebzehn · achtzehn · neunzehn
the tensunit + zigzwanzig · dreißig · vierzig · fünfzig · sechzig · siebzig · achtzig · neunzig
21–99unit + und + tens · one single word21 = einundzwanzig · 47 = siebenundvierzig · 99 = neunundneunzig
100 and upLeft to right, but the last two digits are still backwards137 = hundertsiebenunddreißig · 2026 = zweitausendsechsundzwanzig

There are five irregular spellings, all in bold in this table: sechzehn and sechzig (sechs loses its s), siebzehn and siebzig (sieben loses its en), dreißig (ßig, not zig).

Why the backwards order hurts so much: in English you write a number in the order you hear it — “forty-seven”, 4 first. In German you hear the 7 first and your pen is still waiting for the 4. Phone numbers, IBANs and prices are where your handwriting ends up in the wrong order. (Old English had this too — “four and twenty blackbirds” — so it is less alien than it feels.)

einundzwanzig

21 — “one and twenty”

zweiundvierzig Euro

42 euros

Practical trick: Germans often read phone numbers in pairs — 0176 / 23 45 67 is said null eins sieben sechs — dreiundzwanzig — fünfundvierzig — siebenundsechzig. So inside every pair the order is still backwards. If you get lost, “Können Sie bitte einzeln sagen?” — “Could you say them one by one, please?” — is completely normal and nobody minds.

02

eins or ein

On its own, 1 is eins. But the moment it stands in front of a noun it is declined like an article and loses its s.

Wie viel? — Eins.

How many? — One. (the bare number)

ein Buch · eine Frau · ein Kind

with a noun — like an article

Es ist ein Uhr.

It’s one o’clock. — not “eins Uhr”

Es ist eins.

It’s one. — drop Uhr and the s comes back

03

Clock time — two separate systems

German has two ways of telling the time: official and everyday. Both are common; the everyday one turns up in the exam and at the door, and that is where the trap is.

TimeOfficial (stations, appointments)Everyday (speech)
14:00vierzehn Uhrzwei
14:15vierzehn Uhr fünfzehnViertel nach zwei
14:30vierzehn Uhr dreißighalb drei
14:45vierzehn Uhr fünfundvierzigViertel vor drei
14:10vierzehn Uhr zehnzehn nach zwei
14:50vierzehn Uhr fünfzigzehn vor drei

The official system uses the 24-hour clock and reads the digits as they are — it is almost impossible to get wrong. When you book an appointment or confirm a date, prefer the official system: say vierzehn Uhr dreißig and the risk of a mix-up drops to zero.

  • Wie spät ist es? / Wie viel Uhr ist es? — What time is it?
  • Es ist halb neun. — It’s half past eight.
  • Um wie viel Uhr…? — At what time…?
  • Um acht Uhr. — At eight. · Gegen acht. — Around eight.
  • Von neun bis fünf. — From nine to five.
  • Ab Montag. — From Monday on.
04

Dates — ordinals and am

In a date the number no longer answers “how many” but “which one” — so it turns into an ordinal, just like English “the fourth”, “the twentieth”. The rule in two lines:

RangeEndingExample
1–19-teder vierte · der zehnte · der neunzehnte
20 and up-steder zwanzigste · der einunddreißigste
Three irregular ones—1. der erste · 3. der dritte · 7. der siebte

In writing an ordinal is shown as digit + full stop: 3. Mai = dritter Mai. Forget the full stop and you have written “3 May (as a plain count)” instead of “the 3rd of May”.

  • Der Wievielte ist heute? — What’s the date today?
  • Heute ist der 3. Mai. — Today is 3 May. (nominative: der dritte)
  • Ich habe am 3. Mai Geburtstag. — My birthday is on 3 May. (am dritten — dative)
  • im Mai · im Sommer · im Jahr 2026 — month, season, year
  • am Montag · am Wochenende — day
  • in der Nacht — the one exception: night takes in

Because am = an dem (dative), the ordinal takes -en: am dritten Mai. In the nominative it is -e: der dritte Mai. Why it changes is explained on the cases page.

Practice now

What you just learned

  • Heute ist der ___ Mai. (1)

    Show the answer

    erste. The ordinal for eins is irregular and takes the ending -e in the nominative.

  • “halb acht” means 08:30.

    Show the answer

    False. German time looks forward. halb acht is half the way to eight, so 07:30.

  • What number is siebenundsechzig?

    Show the answer

    67. The unit is said first: sieben (7) und sechzig (60).

05

Traps

Trap 01

halb drei = 2:30, not 3:30

In British English “half three” means 3:30 — it comes after three. German halb drei means “half the way to three” — so 2:30. This one trap sends people to an appointment an hour early or an hour late.

halb drei

14:30 / 02:30 — “half past two”

halb acht

07:30 — “half past seven”

Sentence to memorise: Germans look forward when they tell the time. Take the number you hear and think one less.

Trap 02

Writing the number in the order you hear it

When you hear sechsundvierzig, your hand writes 6 first. The right answer is 46. If you are holding a pen, leave room for two digits and fill in the units from the right.

dreiundachtzig

83 — not 38

achtunddreißig

38 — not 83

Trap 03

dreizig · sechszehn · siebenzig

There are five spelling exceptions and they are misspelled all the time: dreißig (not dreizig), sechzehn · sechzig (not sechszehn), siebzehn · siebzig (not siebenzig).

Trap 04

Decimal and thousands separators are swapped

German uses the comma for decimals and the full stop for thousands — the exact opposite of English. 1.500,50 € = one thousand five hundred euros fifty cents, and it is read: eintausendfünfhundert Euro fünfzig.

3,5 = drei Komma fünf

three point five

Trap 05

Writing the date in American order

German dates are written day.month.year: 03.05.2026 = 3 May 2026. If you are used to the American order (month/day), you will miss your appointment date.

Trap 06

Saying the year with “in”

A year is said either on its own or with im Jahr. The English habit of “in 2026” is wrong in German.

In 2026 fahre ich nach Berlin.

extra preposition

2026 fahre ich nach Berlin.

I’m going to Berlin in 2026.

Im Jahr 2026 fahre ich nach Berlin.

same meaning, formal tone

06Build

Build the sentence yourself

Tap the words and put them in order. This is the hardest part of German — and there are no options to pick from, you build it.

  1. tap the words

  2. tap the words

  3. tap the words

Tips

Know this before the test

The core of the topic in three lines, then the mistakes people make most often.

  1. Numbers are built backwards

    21 = einundzwanzig (one-and-twenty). 67 = siebenundsechzig. Units first, then tens.

    einundzwanzig = 21

  2. halb looks FORWARD

    halb neun = 8:30 — half of nine, NOT half past nine. Viertel vor/nach is the quarter you already know.

    halb neun = 8:30

  3. Dates use ordinals

    am ersten Mai · am dritten Oktober. 1st, 3rd, 7th and 8th are irregular: erste · dritte · siebte · achte.

    am dritten Mai

  4. Full stop and comma are swapped

    1.500,50 € — full stop for thousands, comma for decimals. dreißig is written with ß.

    1.500,50 €

  • halb neun = 9:30

    halb neun = 8:30

    The English “half nine” reflex turns it around; halb looks at the coming hour.

  • zwanzigeins

    einundzwanzig

    The unit is said first.

  • dreisig

    dreißig

    30 is written with ß (except in Switzerland).

  • am drei Mai

    am dritten Mai

    A date needs an ordinal; drei → dritte is irregular.

0608:00

Test yourself

Tap an answer — we will look at why together.

What number is siebenundsechzig?

67. The unit is said first: sieben (7) und sechzig (60).

Es ist halb neun. What time is it?

08:30. halb neun = half the way to nine. Take the hour one lower than the number you hear, plus 30 minutes.

14:45 — how do you say it in everyday speech?

Viertel vor drei. It is a quarter before three. nach means past, vor means before.

Which one is spelled correctly?

dreißig. 30 is the only spelling exception: -ßig, not -zig.

My birthday is on 3 May.

am dritten Mai. Days and dates take am; because am = an dem is dative, the ordinal takes -en. im is only for months, seasons and years.

It’s one o’clock.

ein Uhr — not “eins”

Es ist ein Uhr. The number one loses its s before a noun. Said alone it becomes Es ist eins.
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Worksheet

Numbers · time · date pocket card

This whole page — tables, traps, examples — as one PDF. Download it, print it, run through it before the exam.