Genitive Time Expressions
The Polish Genitive of Time allows you to say 'on [date]' or 'that [time]' simply by changing the noun's ending to the genitive case, without using a preposition like 'w' (in) or 'na' (on).
How It Works
The Genitive of Time is a versatile tool in Polish for pinpointing when something happens. It is most commonly used in three scenarios:
1. Dates (The most common use)
To say 'on the [number] of [month]', both the ordinal number and the month must be in the genitive. The number is always masculine because it refers to the 'ghost noun' dzień (day).
Example: piątego maja (on the fifth of May).
2. Narrative Time Points
When telling a story or referring to a specific, singular time, Polish uses the genitive of demonstrative pronouns (tego, tamtego, pewnego) combined with time nouns:
- pewnego dnia (one day)
- tej nocy (that night)
- zeszłego roku (last year - literary/archaic; use w zeszłym roku for standard speech)
3. Half-Hours (wpół do)
When telling time, the phrase wpół do (half to) always triggers the genitive of the approaching hour. Unlike dates, the ordinal number here is feminine because it agrees with the implied 'ghost noun' godzina (hour).
Example: wpół do szóstej (half to six, which is 5:30).
Important Note on Months: Most months end in -a in the genitive (marca, czerwca), but luty (February) behaves like an adjective and becomes lutego.
Examples (5)
- Urodziłem się czwartego czerwca.
I was born on the fourth of June.
Word by Word: I-was-born self fourth of-June.
Both 'fourth' (czwartego) and 'June' (czerwca) are in the genitive case to indicate the date.
- Pewnego wieczoru zadzwonił do mnie stary znajomy.
One evening, an old friend called me.
Word by Word: Certain evening called to me old acquaintance.
'Pewnego wieczoru' uses the genitive to set the specific time the event occurred in a narrative style.
- Spotkajmy się o wpół do dziewiątej.
Let's meet at half past eight.
Word by Word: Let-us-meet self at half to ninth.
In Polish, 8:30 is 'half to nine'. The hour 'nine' (dziewiąta) changes to the feminine genitive 'dziewiątej' after 'wpół do'.
- Tej nocy nie mogłem spać.
That night I couldn't sleep.
Word by Word: That night not I-could sleep.
'Tej nocy' is the genitive form of 'ta noc', used here to specify which night the action happened.
- Zeszłego roku byłem w Polsce.
Last year I was in Poland.
Word by Word: Last year I-was in Poland.
This is a literary or slightly archaic way to express 'last year'. In standard modern speech, 'w zeszłym roku' (locative) is used.
Common Mistakes
Using the preposition 'w' (in/on) with dates.
W piątego maja idę do kina.Piątego maja idę do kina.Learners often over-apply the rule for weekdays (w poniedziałek). In everyday Polish, dates do not take the preposition 'w'; the genitive alone is enough. (Formal documents use 'w dniu piątego maja'.)
Naming the wrong hour with 'wpół do'.
Different MeaningJest wpół do piątej.Jest wpół do szóstej.Polish counts toward the next hour. 'Jest wpół do piątej' is correct, but it means 4:30. For 5:30, say 'wpół do szóstej' ('half to six').
Using the nominative case for dates in sentences.
Dzisiaj jest pierwszy maj.Dzisiaj jest pierwszego maja.While you might see 'Pierwszy Maj' on a calendar header, when you are saying something happens 'on' that day or even just stating today's date, the genitive 'pierwszego maja' is the standard form.
How It Connects
Learn This First
Learn Genitive Case before Genitive Time Expressions.
Related Patterns
- Dates
This pattern specifically focuses on how ordinal numbers and months decline to form dates.
Level 3 - Accusative Duration
While genitive marks a point in time, the accusative (without a preposition) is used to show how long an action lasts.
Level 3 - w + LocativeW with the Locative
The locative with 'w' is the alternative way to express time for years and months in casual speech.
Level 1 - Ordinal Numbers
Understanding how ordinal numbers agree with nouns is essential for correctly forming dates in the genitive.
Level 2