Telling the time in Finnish is mostly easy — until you hit one construction that will get you to the wrong meeting, the wrong platform, and the wrong century of embarrassment. Finnish counts the half-hour down toward the coming hour, so puoli kaksi is not half past two but half past one. This page builds the clock from the simple whole hour up through minutes, quarters, and that treacherous half, and then shows you the case Finnish uses for saying something happens at a given time. The counting numbers underneath it all come from Cardinal Numbers 1–10.
Asking and giving the whole hour
To ask the time, Finns say either Paljonko kello on? or Mitä kello on? — literally "How much / what is the clock?" The answer is kello on ("the clock is") plus the plain cardinal number:
Paljonko kello on? — Kello on kaksi.
What time is it? — It's two o'clock.
Kello on tasan kymmenen.
It's exactly ten o'clock.
The word kello does double duty as both "clock" and "o'clock". In casual speech people drop it once the topic is clear: — Kolme. ("Three.")
Minutes past and to the hour
For minutes, Finnish uses two little words:
- yli = "past" (minutes after the hour)
- vaille = "to" (minutes before the next hour)
Kello on viisi yli kaksi.
It's five past two (2:05).
Kello on kymmenen yli seitsemän.
It's ten past seven (7:10).
Kello on kymmentä vaille kahdeksan.
It's ten to eight (7:50).
There is a small case wrinkle here that native speakers themselves are inconsistent about, so do not agonise over it: after vaille the minute count reliably goes into the partitive (viittä vaille, kymmentä vaille), because vaille is a preposition governing the partitive. After yli, most speakers use the plain form (viisi yli, kymmenen yli). The Finnish language authorities explicitly allow variation on the yli side, so kymmentä yli is heard too — you will not be misunderstood either way.
Quarters: vartti
A quarter-hour is vartti. It pairs with the same yli and vaille, and this is the one place the case difference is worth memorising:
- varttia vaille (partitive) = a quarter to
- vartin yli (genitive) = a quarter past
Juna lähtee varttia vaille kahdeksan.
The train leaves at a quarter to eight (7:45).
Tavataan vartin yli kuusi kahvilan edessä.
Let's meet at a quarter past six (6:15) in front of the café.
The half-hour trap: puoli counts down, not up
Here is the construction that catches every English speaker. English half two means 2:30 — half an hour after two. Finnish puoli kaksi means 1:30 — half an hour before two. Finnish is measuring how far you have travelled toward the next full hour: at puoli kaksi you are "halfway to two."
| Finnish | Literally | Actual time |
|---|---|---|
| puoli yksi | "half [to] one" | 12:30 |
| puoli kaksi | "half [to] two" | 1:30 |
| puoli kolme | "half [to] three" | 2:30 |
| puoli kymmenen | "half [to] ten" | 9:30 |
So the rule is blunt: subtract one hour from the English instinct. When you hear puoli kaksi, think "one thirty," not "two thirty."
Kello on jo puoli kolme, meidän pitää lähteä.
It's already half past two (2:30), we need to go.
Herään yleensä puoli seitsemän aikaan.
I usually wake up around half past six (6:30).
Saying "at" a time: the ablative
To say something happens at a certain time, Finnish does not use a preposition — it puts the hour into the ablative case, ending in -lta / -ltä. This is built on the number's oblique stem, so kaksi → kahde- → kahdelta.
| Hour | "at" (ablative) |
|---|---|
| yksi | yhdeltä |
| kaksi | kahdelta |
| kolme | kolmelta |
| neljä | neljältä |
| viisi | viideltä |
| kuusi | kuudelta |
| seitsemän | seitsemältä |
| kahdeksan | kahdeksalta |
The half-hour keeps puoli fixed and puts the ablative on the hour word: puoli kolmelta = "at half past two." You can ask "at what time?" with Mihin aikaan? or, colloquially, Monelta?
Tavataan kello kuudelta kahvilan edessä.
Let's meet at six o'clock in front of the café.
Kokous alkaa puoli kymmeneltä.
The meeting starts at half past nine (9:30).
Monelta bussi lähtee? — Neljältä.
What time does the bus leave? — At four.
The 24-hour clock: reading digits
Timetables, tickets, and the news use the 24-hour clock, written with a full stop (14.05) rather than a colon. Read it as a straight string of numbers — hour, then minutes, with nolla ("zero") pronounced for a leading zero:
Juna lähtee kello 14.05 — neljätoista nolla viisi.
The train departs at 14:05 (fourteen zero five).
Uutiset alkavat kello kaksikymmentäyksi.
The news starts at 21:00 (twenty-one hundred).
This digital style neatly avoids the puoli trap altogether — which is exactly why announcements use it. In everyday speech, though, the 12-hour system with puoli, yli, and vaille is what you will hear.
Common Mistakes
1. Reading puoli as English "half past." The classic — and most costly — error.
❌ 'Puoli kaksi' = 2:30
Incorrect — it means 1:30; Finnish counts down to the coming hour.
✅ 'Puoli kaksi' = 1:30
'Half [to] two' — half an hour before two.
2. Using the plain hour, or a place case, for "at".
❌ Tavataan kahdessa.
Incorrect — kahdessa is 'in two / in the two', not 'at two o'clock'.
✅ Tavataan kahdelta.
Let's meet at two.
3. Wrong case on the half-hour "at".
❌ Elokuva alkaa puoli kolme.
Incorrect — 'at' needs the ablative on the hour word.
✅ Elokuva alkaa puoli kolmelta.
The film starts at half past two (2:30).
4. Using vaille for 'past'.
❌ Kello on varttia vaille kaksi — 2:15.
Incorrect — varttia vaille is 'quarter to' (1:45), not 'quarter past'.
✅ Kello on vartin yli kaksi.
It's a quarter past two (2:15).
Key Takeaways
- kello on + cardinal gives the whole hour.
- yli = past, vaille = to; vaille takes the partitive (viittä vaille).
- puoli X = 30 minutes BEFORE X. Puoli kaksi is 1:30. Subtract an hour from the English reading.
- "At" a time = ablative (kahdelta, kolmelta, puoli kolmelta).
- The 24-hour clock is read as plain digits and sidesteps puoli entirely.
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Start learning Finnish→Related Topics
- Cardinal Numbers 1–10A1 — The base ten — yksi, kaksi … kymmenen — with their inflection stems, and the rule that a number above one takes the counted noun in the partitive singular.
- Dates and the CalendarA2 — Writing and saying Finnish dates — the day is an ordinal, the month bends to genitive or partitive, and 'on' a day uses the essive.
- Cases in Time ExpressionsB1 — Finnish packs time onto the noun's case: essive for days, adessive for seasons, inessive for 'within', translative for deadlines, and -n for duration.
- Ordinal Numbers: ensimmäinen, toinen, kolmasA2 — The Finnish ordinals from first to tenth — the two irregular low forms and the regular -s series built on the cardinal.