Thai New Year or Songkran, also known as Songkran Festival, Songkran Splendours, is the Thai New Year's national holiday. Songkran is on 13 April every year, but the holiday period extends from 14 to 15 April. In 2018 the Thai cabinet extended the festival nationwide to seven days, 9–16 April, to enable citizens to travel home for the holiday. In 2019, the holiday was observed 9–16 April as 13 April fell on a Saturday. In 2024, Songkran was extended to almost the entire month, starting on the first of April, and ending on the twenty-first, departing from the traditional 3-day format. And with the New Year of many calendars of Southeast and South Asia, in keeping with the Buddhist calendar and also coincides with New Year in Hindu calendar such as Vishu, Bihu, Pohela Boishakh, Pana Sankranti, Vaisakhi. The New Year takes place at around the same time as the new year celebrations of many regions of South Asia like China, India, Laos, Cambodia, Myanmar, Nepal, and Sri Lanka.

Songkran is the water-splashing festival celebration of Tai peoples in traditional new year for Buddhist calendar widely celebrated across South and Southeast Asia in Bangladesh, Cambodia, Laos, Myanmar, Sri Lanka, Thailand, parts of northeast India, parts of Vietnam and Xishuangbanna, China begins on 13th April of the year.