as the traditional New Year's Day from 13 to 15 April. It coincides with the New Year of many calendars of South
and Southeast Asia
. Songkran has traditionally been celebrated as the New Year for many centuries, and is believed to have been adapted from an Indian festival
. It is now observed nationwide, even in the far south. However, the most famous Songkran celebrations are still in the northern city of Chiang Mai
, where it continues for six days and even longer. It has also become a party for foreigners and an additional reason for many to visit Thailand for immersion in another culture.