King Norodom Shiamoni's Birthday is observed in Cambodia every May 14, celebrating the birth of the reigning King, who was born in 1953. The festivities last for three days, from May 13 to May 15, and are marked as a national holiday. During this time, government buildings are adorned with portraits of the King and national flags. Cambodians often gather for parties with family and friends, and on the evening of May 14, a fireworks display is held in front of the Royal Palace in Phnom Penh. This public holiday commemorates the King's contributions and reign, following his ascension to the throne in 2004 after the abdication of his father, King Norodom Sihanouk.