Time, Dates, and Appointments

Arranging to meet someone is one of the most common things you do in a language, and in Turkish it quietly pulls together three separate grammar systems at once: clock times take case endings (üçte "at three"), the verb you use to propose a time is usually the optative (buluşalım "let's meet"), and the polite framing question hangs on a single adjective plus the question particle (müsait misiniz? "are you free?"). Once you see how these click together, scheduling stops feeling like vocabulary and starts feeling like grammar you can generate.

Asking when: Ne zaman? vs. Saat kaçta?

There are two questions hiding behind English "when." Ne zaman? asks for the occasion in general — a day, a part of the day, a vague point in the future. Saat kaçta? (literally "at what o'clock?") asks specifically for the clock time. English collapses both into "when," so learners reach for one when they need the other.

Notice that kaçta already carries the locative ending -ta — it is built to ask "at what time," so the answer must come back in the same locative case. That parallelism is your single most reliable signal that the answer needs -de/-da/-te/-ta.

Clock times take the locative: üçte, on buçukta

This is the heart of the page. To say "at three," you do not just say the number — you put the clock time into the locative case, the same ending that means "in/at/on" for places. "At three" is üçte, "at five" is beşte, "at half past ten" is on buçukta.

The locative ending harmonizes and assimilates: it is -de/-da after a vowel or voiced consonant, and -te/-ta after a voiceless consonant (the ç-ş-k-t-p-f-s-h set). So üç ends in voiceless ç → üçte; beş ends in voiceless ş → beşte; on ends in voiced n → onda.

For times with minutes, the locative attaches to the last word of the time expression. "At quarter past nine" is dokuzu çeyrek geçe and "at twenty to eight" is sekize yirmi kala — these are set time phrases that already end in geçe/kala, so they do not take an extra ending. But for the round-and-half system you'll use most, the rule is clean: put the locative on the hour or on buçuk (half).

Setting up the meeting: the optative buluşalım

To propose a time — "let's meet at six," "let's set off early" — Turkish uses the first-person plural optative, the -(y)alım/-(y)elim ending often translated "let's." This is the natural, friendly way to make a plan together, softer than a flat command. The key verb is buluşmak "to meet up (with each other)," giving buluşalım "let's meet."

Two location notes ride along here. The place of meeting takes the locative too (kafede "at the café," kapının önünde "in front of the door"), and the person you meet takes the comitative ile / -le: seninle buluşalım "let's meet (with you)." So a full proposal can stack locative-on-place, locative-on-time, and comitative-on-person — three case-like endings in one short sentence.

randevu: the formal appointment

For anything official — a doctor, a hairdresser, a business meeting — the word is randevu "appointment." The verb that goes with it is almak "to take": you take an appointment, randevu almak, the way you "make" one in English. To say what time the appointment is, you again reach for the locative.

The polite frame: müsait misiniz?

Before pinning a time, you check availability. The adjective müsait means "free, available," and you turn it into a yes/no question with the separate question particle mi plus the personal ending: müsait misiniz? (formal/plural "are you free?"), müsait misin? (informal). The particle mi harmonizes to mı/mu/mü by vowel harmony — after müsait's final i, it stays mi.

You can also ask about a verb directly with -(y)ebilmek "to be able to": Saat altıda gelebilir misin? "Can you come at six?" Both routes are polite; müsait misiniz is the smoother, more native-sounding opener for setting up a meeting.

Early, late, on time: erken, geç, tam zamanında

Three time adverbs round out the toolkit. Erken "early," geç "late," and tam zamanında "right on time." A crucial idiom: "to be late" is geç kalmak, literally "to remain late" — not geç olmak (which means "to get late," about the hour itself getting late).

A scheduling dialogue

Here is everything working at once — the availability check, the optative proposal, the clock-time locative, and a confirmation.

Common mistakes

English speakers consistently drop the case ending on clock times, because English "at three" marks the relationship with a separate word ("at"), not on the number itself.

Choosing Ne zaman? when you specifically want the clock time:

Using geç oldum instead of geç kaldım for "I'm late":

Saying randevu yapmak by calquing English "make an appointment":

Forgetting the locative on the meeting place as well as the time:

Key takeaways

• Ne zaman? asks for the occasion; Saat kaçta? asks for the clock time — they are not interchangeable.
• Clock times take the locative: üçte, beşte, on buçukta. The voiceless-consonant rule gives -te/-ta after ç, ş, k, t, p; -de/-da otherwise.
• Propose a meeting with the first-person plural optative: buluşalım "let's meet," softened to a question with mı.
• An official randevu is something you al- (take), not "make"; the time still goes in the locative.
• Check availability with müsait misin(iz)? and remember "to be late" is geç kalmak, never geç olmak.