It is called “Khmer” New Year because Khmer are the dominant ethnic group within the nation. Ninety-five percent of Cambodia’s 15 million people follow Theravada Buddhism, which is also the official religion. The calendar they follow is deeply steeped in their Buddhist religious traditions. The Cambodian New Year falls on either the 13th or 14th of April, depending on the dictates of an ancient horoscope reading called “Maha Sangkran.”