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The logic behind Thai time of day makes it easier to learn

I've often heard among other non-Thais that learning to tell the time in Thai is confusing. Especially the evening hour system of 1-5 thum (ทุ่ม).

So I thought there must be some logic to it. Why is the day split up so uniquely?

I did some quick research, and it turns out there is. And it helps with memorisation, too!

Firstly, I found out those confusing night hours are based on 1-5 strikes against a drum called a klong (กลอง). It's a barrel-type leather drum. So naturally, the sound "thum" also helps with memorising those hours.

Finding this out sent me down a rabbit hole wondering about the other times and their reasons.

It actually comes together nicely like this:

  • Midnight: thiang khuen (เที่ยงคืน), literally "half night".
  • 1am to 5am: dtee + number(ตี), from a quiet cymbal called a ching (ฉิ่ง). Makes sense, you don't want to blast something noisy and wake people up during those hours.
    • ตี also means to hit.
  • 6am to 11am: number + hour + chao (เช้า means morning), just to distinguish it from the afternoon.
  • Midday: thiang wun (เที่ยง), literally "half day".
  • 1pm to 4pm: number + bai + hour (บ่าย, afternoon), just to distinguish it from the morning.
  • 5pm to 6pm: yen + hour + number (เย็น), the cooler evening hours, thus "yen". Makes sense mentally as a time you'd give a different name to.
  • 7pm to 10pm: number + thum (ทุ่ม), the drum at night. Imagine the drum being used, though I remember it as the time when people were probably going to sleep.

Here's a quick infographic.

From that point of view, the times are much easier to remember.

Benjamin Boman
Written by Benjamin Boman

Marketer and freelance Facebook Ads manager, currently traveling in SE Asia.

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