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Constitution Day 2026

September 24 marks Constitution Day in Cambodia — a national public holiday commemorating the adoption of the Cambodian Constitution on September 24, 1993. After decades of civil conflict, foreign occupation, and the devastation of the Khmer Rouge era, the constitution represented Cambodia’s return to a functioning state. For visitors in Siem Reap, it’s a day when the country pauses to reflect on that recovery.

The holiday is observed across the country with government ceremonies, flag displays, and public gatherings. In Phnom Penh, official events take place at the Constitution Monument near the Independence Monument. In Siem Reap, the atmosphere is quieter — a public holiday with a respectful tone rather than the large street celebrations seen during Khmer New Year or the Water Festival.

Practically speaking, Constitution Day is a full public holiday. Government offices, banks, and many local businesses will be closed. Major tourist sites including Angkor Wat remain open, though ticketing offices and transport services may operate on reduced schedules. It’s worth confirming hours for any planned activities in advance.

If you’re in Siem Reap on September 24, expect a relaxed pace and a chance to see the city without its usual weekday bustle. The national flag flies prominently across the province. It’s also a good day to visit the Angkor National Museum, which keeps regular tourist hours on public holidays.