July 24, 25, 26 and 28 are official holidays – Saturday July 24 is Asanha Bucha Day; July 25 the beginning of Buddhist Lent; Monday July 26 is a substitute holiday; and July 28 is His Majesty the King’s birthday.
The Thai cabinet on Tuesday cancelled the July 27 special holiday announced earlier to boost domestic tourism, out of Covid-19 concerns, deputy government spokeswoman Ratchada Dhnadirek said.
The cabinet on Dec 29, 2020, declared that July 27 this year, a Tuesday, would be a special holiday, allowing an extra-long weekend from July 24-28.
Source: Bangkok Post