Full Moon Day is Sunday, which day is the no alcohol sales day ?

Makha Bucha Day Saturday, February 8 Public Holiday, No Alcohol Sales permitted
Makha Bucha Substitution Day, Monday., February 10, Public Holiday

Most websites indicate Makha Bucha Day is Saturday.  Google and a few others cite Sunday, as that is also the full moon day
สกลนคร Sakon Nakhon