B2 · Formal prepositions · about 15 min
binnen and innerhalb (within)
binnen und innerhalb
innerhalb and binnen both mean within; binnen is very formal: Bitte zahlen Sie innerhalb von 14 Tagen.
Learn first:Prepositions with the genitive
Case governance: innerhalb vs. binnen
| Preposition | Governed case | Typical structure | Real-life invoicing and legal example | English translation |
|---|---|---|---|---|
| innerhalb (with article/adjective) | Genitive | Preposition + article/adjective + noun | innerhalb eines Jahres / innerhalb dieser Frist | within one year / within this deadline |
| innerhalb von (bare nouns/numbers) | Dative | innerhalb von + plural noun | innerhalb von drei Werktagen | within three working days |
| binnen (singular with article) | Genitive (formal) or Dative | Preposition + article/adjective + noun | binnen eines Monats (Gen) / binnen einem Monat (Dat) | within one month |
| binnen (with numbers / plural) | Dative (no von) | Preposition + number + noun (+ -n) | binnen fünf Werktagen | within five working days |
| binnen (genitive numeral forms) | Genitive (legal) | Preposition + zweier/dreier + noun | binnen zweier Wochen | within two weeks |
The main points
- innerhalb + genitive: innerhalb eines Monats, innerhalb der Frist.
- Bare numbers: innerhalb von + dative, as in innerhalb von 14 Tagen.
- binnen is very formal and goes straight before numbers: binnen 14 Tagen.
- Dative plurals add -n: Tagen, Monaten. Wochen stays the same.
- innerhalb also works for places; binnen never does.