Sunday, May 1 is the traditional May Day, but since it falls on a Sunday, Monday May 2 has been designated as the May Day public holiday, and as such government businesses and banks will be closed. Many bank branches in shopping malls may be open to cater to foreign exchange, and most exchange booths throughout the city will also be open.
The Thai government declared May 1 as National Labor Day in 1935. Employees are given a public holiday to celebrate the significance of labor.