This day is a religious public holiday. It came from the day when 1,250 disciples from the Lord Buddha gathered to listen for the Dharma speech after Buddha's enlightenment. Merit making ceremonies take place at temples, while at night candlelit processions walk three times around the temple; one time for the Lord Buddha, one time for the Sangha - Buddhist monk community, and one time for the Dharma - Buddhist teachings.
No alcohol sales tomorrow, I believe the bars are all closed for this, certainly from last year I remember that 7/11 were not selling alcohol. Although, this is Thailand and sure some of the out of town mom & pop stores will still sell.
Best to stock up tonight if the thirst desires.
