Pavarana and Wan Ok Phansa in Thailand

Pavarana is a Buddhist holy day celebrated on Aashvin full moon of the lunar month. It marks the end of the 3 lunar months of Vassa, sometimes called "Buddhist Lent." The day is marked in some Asian countries where Theravada Buddhism is practiced. On this day, each monk must come before the community of monks (Sangha) and atone for an offense he may have committed during the Vassa.

Wan Ok Phansa is the last day of the Thai-Lao observance of Vassa. It occurs in October, three lunar months after the beginning of Vassa, known as Wan Khao Phansa.