The Songkran festival (Thai: เทศกาลสงกรานต์, pronounced is the Thai New Year's festival. The Thai New Year's Day is 13 April every year, but the holiday period includes 14–15 April as well. The word "Songkran" comes from the Sanskrit word saṃkrānti literally "astrological passage", meaning transformation or change. The term was borrowed from Makar Sankranti, the name of a Hindu harvest festival celebrated in India in January to mark the arrival of spring. It coincides with the rising of Aries on the astrological chart, the New Year of many calendars of South and Southeast Asia. The festive occasion is in keeping with the Buddhist/Hindu solar calendar.