Labour Day

Nations and dependencies coloured by observance of International Workers' Day or a different variant of May Day or Labour Day:
  Labour Day falls or may fall on 1 May
  Another public holiday on 1 May
  No public holiday on 1 May, but Labour Day on a different date
  No public holiday on 1 May and no Labour Day

Labour Day (or Labor Day) is an official public holiday in many countries. In most countries, Labour Day is synonymous with, or linked with, International Workers' Day, which happens on 1 May. It was originally chosen to commemorate the 1886 general strike which culminated in the Haymarket affair. In the United States and Canada, it is a public holiday on the first Monday in September.

Labour Day is a public / statutory holiday. It is an annual day of celebration of the labour movement and the institution of achievements. It has its origins in the labour union movement, specifically the eight-hour day movement, which advocated eight hours for work, eight hours for recreation, and eight hours for rest.