Six-hour clock

The six-hour clock is a traditional timekeeping system used in the Thai and formerly the Lao language and the Khmer language, alongside the official 24-hour clock. Like other common systems, it counts twenty-four hours in a day, but divides the day into four quarters, counting six hours in each. The hours in each quarter (with the exception of the sixth hour in each quarter) are told with period-designating words or phrases, which are:

... mong chao (Thai: ...โมงเช้า, [mōːŋ tɕʰáːw]) for the first half of daytime (07:00 to 12:59)

Bai ...

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