Time in Thai: How to Tell and Ask the Time

Why Thai time uses a six-hour clock

Before you memorise a single phrase, it helps to understand the shape of the system, because the shape is what makes time in Thai feel foreign at first. English speakers grow up with a twelve-hour clock split by am and pm, and a twenty four hour clock underneath it for schedules. Thai grew up with something different: a spoken clock that divides the day and night into four blocks of roughly six hours, and gives each block its own word for the hour.

The names of those hour words come from the sounds that once marked time. In the daytime, hours were announced by striking a gong, and the word for that daytime hour is หมง, written โมง and pronounced moong, an echo of the gong's ring. At night, the hours were beaten out on a drum, and the word for an evening hour is ทุ่ม, pronounced thûm, the thud of the drum. In the small hours after midnight, a watchman struck a bell or block to mark the hour, and that hour word is ตี, pronounced dtii, which plainly means to strike or to hit. So the clock is literally built from the sounds of gongs and drums.

Here is the part that surprises learners the most. Inside each block, the count often restarts rather than climbing all the way to twelve. Seven in the evening is not "nineteen o'clock" and it is not even "seven"; it is หนึ่งทุ่ม, nʉ̀ng thûm, meaning "one drum," because it is the first hour of the evening block. One in the morning is ตีหนึ่ง, dtii nʉ̀ng, "strike one," the first hour after midnight. This restarting is the single biggest thing to wrap your head around, and once you accept that Thai is counting hours within a part of the day rather than around a full clock face, the numbers you hear finally start to make sense.

You do not have to abandon the clock you already know. Modern Thailand also uses a straightforward twenty four hour system called นาฬิกา, naa-lí-gaa, for timetables, the news, and official writing, and we cover it in full further down. But in ordinary conversation, on the street, with friends, at the market, the spoken six-hour clock is what you will hear, so it is the one to learn first and the one this guide spends the most time on.

Thai numbers you need first

Telling time is impossible without numbers, so start here. The good news is that Thai numbers are wonderfully regular, far more so than English, and once you have one to ten the rest falls into a pattern you can build without memorising every value separately. Here are the core numbers zero to ten.

For minutes you will need numbers up to fifty nine, and this is where the regularity pays off. Ten is สิบ sìp. To make the teens you simply say "ten" and then the digit: eleven is สิบเอ็ด sìp èt, twelve is สิบสอง sìp sǎawng, thirteen is สิบสาม sìp sǎam, and so on. Notice that "one" changes to เอ็ด èt when it is the last digit of a compound number, so it is sìp èt for eleven, never sìp nʉ̀ng. That small quirk is worth burning into memory now because it comes up constantly.

The tens are just as tidy. Thirty is สามสิบ sǎam sìp (literally "three ten"), forty is สี่สิบ sìi sìp, fifty is ห้าสิบ hâa sìp. The one exception is twenty, which is not "two ten" but ยี่สิบ yîi sìp, using the special word ยี่ yîi for the twenty. After that, you tack the digit on the end: twenty one is ยี่สิบเอ็ด yîi sìp èt, twenty five is ยี่สิบห้า yîi sìp hâa, forty five is สี่สิบห้า sìi sìp hâa. That is genuinely all you need to count any minute value on the clock.

The building blocks: moong, thum and tii

With numbers in hand, you only need a small set of hour words and period words to assemble any time. Think of these as the pieces you slot together. Here they are, grouped by what they do.

The three hour words are the heart of the system. โมง moong marks a daytime hour, from morning through late afternoon. ทุ่ม thûm marks an evening hour, from about seven at night onward. ตี dtii marks an hour in the small hours, from one in the morning until dawn. Every spoken time you build will lean on one of these three, plus a number.

Alongside them are the period words that pin down which part of the day you mean, because "six moong" alone could be morning or evening. The key ones are เช้า cháo for morning, บ่าย bàai for the early afternoon, and เย็น yen for the late afternoon and early evening. You attach these to the hour to remove any doubt, as in หกโมงเช้า hòk moong cháo for six in the morning versus หกโมงเย็น hòk moong yen for six in the evening.

Two more words handle the pivots of the day. เที่ยง thîang is noon, often said in full as เที่ยงวัน thîang wan, "midday." เที่ยงคืน thîang khʉʉn is midnight, literally "mid-night." These two are fixed points that do not take a number, which makes them easy: noon is just เที่ยง and midnight is just เที่ยงคืน.

How to tell the time in Thai, hour by hour

Now we put the pieces together and walk the whole clock, one period at a time. This is the core of learning to tell the time in Thai, so take it block by block rather than trying to swallow all twenty four hours at once. Each period has its own small logic, and when you see them side by side the restarting count stops feeling random.

The small hours: 1 am to 5 am (ตี dtii)

The hours just after midnight are the simplest of all. You say ตี dtii followed by the number one to five, counting up from midnight. There is no period word to add, because ตี already tells everyone it is the dead of night.

• 1 am: ตีหนึ่ง dtii nʉ̀ng
• 2 am: ตีสอง dtii sǎawng
• 3 am: ตีสาม dtii sǎam
• 4 am: ตีสี่ dtii sìi
• 5 am: ตีห้า dtii hâa

The morning: 6 am to 11 am (โมงเช้า moong cháo)

From six in the morning the day begins, and here the hour word โมง moong takes over, paired with เช้า cháo for morning. In everyday modern speech people say the clock number, then โมง, then เช้า, so the numbers line up with the Western clock face and this period is friendly for beginners.

• 6 am: หกโมงเช้า hòk moong cháo
• 7 am: เจ็ดโมงเช้า jèt moong cháo
• 8 am: แปดโมงเช้า bpàet moong cháo
• 9 am: เก้าโมงเช้า gâo moong cháo
• 10 am: สิบโมงเช้า sìp moong cháo
• 11 am: สิบเอ็ดโมงเช้า sìp èt moong cháo

Noon: 12 midday (เที่ยง thîang)

Twelve in the middle of the day is simply เที่ยง thîang, or เที่ยงวัน thîang wan if you want to be explicit that you mean midday. No number is attached.

The early afternoon: 1 pm to 3 pm (บ่าย bàai)

After noon the count restarts. The early afternoon uses บ่าย bàai before the number, and the number is the hour past twelve. One in the afternoon drops the "one" for a smoother บ่ายโมง.

• 1 pm: บ่ายโมง bàai moong
• 2 pm: บ่ายสองโมง bàai sǎawng moong
• 3 pm: บ่ายสามโมง bàai sǎam moong

The late afternoon and early evening: 4 pm to 6 pm (โมงเย็น moong yen)

From four in the afternoon the word เย็น yen takes over, sitting after โมง. Here the number is again the hour past noon, so four, five, and six. You may also hear บ่ายสี่โมง bàai sìi moong for four in the afternoon; both are common and understood.

• 4 pm: สี่โมงเย็น sìi moong yen (also บ่ายสี่โมง bàai sìi moong)
• 5 pm: ห้าโมงเย็น hâa moong yen
• 6 pm: หกโมงเย็น hòk moong yen

The evening and night: 7 pm to 11 pm (ทุ่ม thûm)

Here is where the drum takes over and the count restarts again. Seven at night is the first evening hour, so it is "one drum," and the count climbs from there. This is the period newcomers find hardest, precisely because ห้าทุ่ม hâa thûm, "five drum," means eleven at night rather than anything with a five in it.

• 7 pm: หนึ่งทุ่ม nʉ̀ng thûm (often just ทุ่ม thûm)
• 8 pm: สองทุ่ม sǎawng thûm
• 9 pm: สามทุ่ม sǎam thûm
• 10 pm: สี่ทุ่ม sìi thûm
• 11 pm: ห้าทุ่ม hâa thûm

Midnight: 12 at night (เที่ยงคืน thîang khʉʉn)

Midnight closes the loop and is simply เที่ยงคืน thîang khʉʉn, "mid-night," with no number. After it, the ตี count begins again at one for the next small hours.

Minutes and half past

Adding minutes is refreshingly logical in Thai, and it follows one firm rule: you count minutes past the hour, and you almost never count minutes to the next hour. There is no everyday "quarter to seven" in the English sense. You say the hour, then the minutes, then optionally the word for minute, นาที naa-thii.

So to say a time with minutes, you build hour + number of minutes + (นาที). The word นาที is often included for clarity but can be dropped when the meaning is obvious. Here are clear examples across the day.

• 6:10 am: หกโมงสิบนาที hòk moong sìp naa-thii
• 8:15 am: แปดโมงสิบห้านาที bpàet moong sìp hâa naa-thii
• 9:20 am: เก้าโมงยี่สิบนาที gâo moong yîi sìp naa-thii
• 1:25 pm: บ่ายโมงยี่สิบห้านาที bàai moong yîi sìp hâa naa-thii
• 8:45 pm: สองทุ่มสี่สิบห้านาที sǎawng thûm sìi sìp hâa naa-thii

For half past, Thai has a neat shortcut. The word ครึ่ง khrʉ̂ng means "half," and you simply add it after the hour to mean thirty minutes past. It attaches to any hour word, whether โมง, ทุ่ม, or ตี.

• 6:30 am: หกโมงครึ่ง hòk moong khrʉ̂ng
• 1:30 pm: บ่ายโมงครึ่ง bàai moong khrʉ̂ng
• 9:30 pm: สามทุ่มครึ่ง sǎam thûm khrʉ̂ng
• 2:30 am: ตีสองครึ่ง dtii sǎawng khrʉ̂ng

That is essentially the whole minute system. String the hour and the minute number together, drop in ครึ่ง when it lands on the half hour, and you can express any time on the clock. Because Thai counts up from the hour rather than down to the next one, you never have to do the mental subtraction that "twenty to nine" forces on English learners.

The formal 24-hour naalikaa clock

Sitting alongside the spoken clock is a formal twenty four hour system you will meet on train and bus timetables, in news broadcasts, in the military, and in official documents. Its hour word is นาฬิกา naa-lí-gaa, which also happens to be the ordinary Thai word for a clock or watch. In this system there are no restarts and no period words: you say the twenty four hour number, then นาฬิกา, then the minutes if any.

This makes it the easy system in one sense, because it maps one to one onto the digital clock you already read. The trade-off is that it sounds formal and stiff in casual conversation, so you would not usually greet a friend with it. Some examples.

• 09:00: เก้านาฬิกา gâo naa-lí-gaa
• 13:00: สิบสามนาฬิกา sìp sǎam naa-lí-gaa
• 14:30: สิบสี่นาฬิกาสามสิบนาที sìp sìi naa-lí-gaa sǎam sìp naa-thii
• 18:45: สิบแปดนาฬิกาสี่สิบห้านาที sìp bpàet naa-lí-gaa sìi sìp hâa naa-thii
• 21:00: ยี่สิบเอ็ดนาฬิกา yîi sìp èt naa-lí-gaa

The practical takeaway is to recognise นาฬิกา when you hear or read it, especially at stations and in announcements, but to speak the six-hour clock yourself in daily life. Being able to switch between the two, understanding the formal system while speaking the casual one, is exactly what fluent locals do.

Asking what time it is

Knowing how to tell the time is only half of it; you also need to ask. The everyday question is short and you will use it constantly. The core phrase is กี่โมง gìi moong, literally "how many moong," which functions as "what time." Add แล้ว láew, a word that signals "already" or "by now," and you get the natural full question.

• What time is it? กี่โมงแล้ว gìi moong láew
• What time is it now? ตอนนี้กี่โมง dtaawn níi gìi moong (ตอนนี้ dtaawn níi means "now")
• What time is it now, then? ตอนนี้กี่โมงแล้ว dtaawn níi gìi moong láew

To ask what time something happens, you keep กี่โมง but put it after the action, the way English puts "at what time" at the end. The pattern is simply activity + กี่โมง.

• What time does the bus leave? รถออกกี่โมง rót òok gìi moong
• What time do you eat? กินข้าวกี่โมง gin khâao gìi moong
• What time does the shop open? ร้านเปิดกี่โมง ráan bpəət gìi moong

Notice that กี่โมง covers "what time" regardless of whether the answer will be a moong, a thum, or a tii hour. It is a fixed question word, so you do not swap in ทุ่ม or ตี when asking, even if the reply comes back as สามทุ่ม. Ask with moong, answer with whatever the clock requires.

Useful time words and phrases

Around the clock itself sits a ring of everyday time vocabulary that makes you sound natural and lets you talk about time, not just read it off a watch. These are worth learning as a set once the hours are solid.

A few of these deserve a note. ชั่วโมง chûa moong is the word for an hour as a length of time, so you say สองชั่วโมง sǎawng chûa moong for "two hours" of duration, which is different from telling a clock time. ประมาณ bpra-maan is handy for softening a time into an estimate, as in ประมาณบ่ายสองโมง bpra-maan bàai sǎawng moong, "around two in the afternoon." And ตรงเวลา dtrong wee-laa, "on time," is the phrase you want when you promise to arrive punctually, which in a country famous for a relaxed pace can earn you a smile.

Worked examples

Let us assemble a few full times from scratch so you can see the pieces click together. Follow the logic and you will be able to build any time yourself.

Example 1: 7:15 am. Seven in the morning is a daytime hour, so we use โมง and the morning marker เช้า, giving เจ็ดโมงเช้า jèt moong cháo. Then add the minutes, fifteen, which is สิบห้า sìp hâa, plus นาที. The whole thing is เจ็ดโมงเช้าสิบห้านาที jèt moong cháo sìp hâa naa-thii.

Example 2: 3:30 pm. Three in the afternoon uses บ่าย with the number three, บ่ายสามโมง bàai sǎam moong. Half past is ครึ่ง, so 3:30 pm is บ่ายสามโมงครึ่ง bàai sǎam moong khrʉ̂ng.

Example 3: 8:00 pm. Eight at night is an evening hour. Counting from seven as "one drum," eight is the second, สองทุ่ม sǎawng thûm. No period word is needed because ทุ่ม already means night.

Example 4: 2:40 am. Two in the small hours is ตีสอง dtii sǎawng. Forty minutes is สี่สิบ sìi sìp, so 2:40 am is ตีสองสี่สิบนาที dtii sǎawng sìi sìp naa-thii.

Example 5: asking and answering. A friend asks ตอนนี้กี่โมงแล้ว dtaawn níi gìi moong láew, "what time is it now?" You glance at your phone and it reads 9:05 pm. Nine at night is the third evening hour, สามทุ่ม sǎam thûm, and five minutes is ห้านาที hâa naa-thii, so you answer สามทุ่มห้านาที sǎam thûm hâa naa-thii. If you wanted to round it off casually you might just say สามทุ่ม sǎam thûm, "nine-ish."

Full time reference table

Here is the whole clock in one place, from midnight around to eleven at night, in the spoken six-hour system. Keep it handy and read a row or two aloud whenever you have a spare minute. If you want to pair this with the script itself, our guide to the Thai alphabet will help you read these words rather than lean on the romanization forever.

Common mistakes to avoid

A few predictable errors catch nearly every learner. Knowing them in advance saves you weeks of confusion.

1. Reading ทุ่ม numbers as clock numbers. The most common trap. ห้าทุ่ม is not five o'clock; it is eleven at night, because the evening count starts at seven. When you hear a ทุ่ม time, add six to the number to get the twenty four hour hour.
2. Forgetting the period word during the day. Saying just หกโมง is ambiguous between 6 am and 6 pm. Attach เช้า or เย็น so หกโมงเช้า and หกโมงเย็น are unmistakable.
3. Using สอง for eleven or twenty one. Remember the number quirks: "one" at the end of a compound is เอ็ด, so eleven is สิบเอ็ด and twenty one is ยี่สิบเอ็ด, never with หนึ่ง.
4. Counting minutes backward. There is no natural "quarter to" in spoken Thai. Always count up from the hour, so 5:50 is ห้าโมงเย็นห้าสิบนาที, not an equivalent of "ten to six."
5. Speaking the naalikaa clock casually. Saying สิบสี่นาฬิกา to a friend sounds like reading a train timetable aloud. Keep the twenty four hour system for formal contexts and use the spoken clock in conversation.
6. Mixing up ชั่วโมง and โมง. ชั่วโมง is a duration, "an hour long," while โมง is a clock hour. "I waited two hours" uses ชั่วโมง, not โมง.

None of these are hard once you have seen them. The theme is that Thai time rewards attention to which block of the day you are in and which counting rule that block uses. Get the block right and the rest follows. If you enjoy this kind of pattern learning, our broader piece on language learning tips has more on turning small systems like this into lasting habits, and our guide on how to memorize vocabulary will help these words stick for good.

Practising Thai time with SPAIKING

You can read this whole guide, understand every rule, and still freeze when a Thai speaker actually turns to you and asks กี่โมงแล้ว. That gap between knowing the system and producing it out loud, under the small pressure of a real exchange, is the last mile of learning to tell time, and it is the mile a reference table cannot walk for you. The only way across is to say these times aloud, many times, until หนึ่งทุ่ม and บ่ายสามโมงครึ่ง come out without a pause.

That is exactly what SPAIKING is built for. It gives you an AI speaking partner you can talk Thai with any time you like, so you can run the time exchange over and over: it asks you the time, you answer, it asks what time your bus leaves, you build the phrase, and it corrects your pronunciation the moment you slip. Because the AI responds naturally, you get the two-way pressure of a real conversation rather than the safe, one-way format of a flashcard, which is what finally moves these phrases from something you recognise to something you can say.

The loop is simple. Study the hours and minutes here, then open SPAIKING and speak them until they are automatic, letting the corrections show you which words still trip your tongue. Do that for a few short sessions and telling the time in Thai stops being a puzzle you decode and becomes something you just do. You can see how it works on the pricing page and start turning these tables into real spoken Thai. If you are building Thai from the ground up, pairing this with the Thai alphabet and a steady habit from our how to learn a language fast guide will get you speaking sooner.