Labour Day or Labor Day is an annual holiday to celebrate the economic and social achievements of workers. Labour Day 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.

Celebrating the Australian labour movement, the Labour Day public holiday is fixed by the various state and territory governments, and so varies considerably. It is the first Monday in October in the Australian Capital Territory, New South Wales and South Australia. In both Victoria and Tasmania, it is the second Monday in March (though the latter calls it Eight Hours Day). In Western Australia, Labour Day is the first Monday in March. In both Queensland and the Northern Territory, it is the first Monday in May.

The National Day is a designated date on which celebrations mark the nationhood of a nation or non-sovereign country. This nationhood can be symbolized by the date of independence, of becoming republic or a significant date for a patron saint or a ruler (birthday, accession, removal, etc.). Often the day is not called "National Day" but serves and can be considered as one. The National Day will often be a national holiday.

Some countries have more than one National Day. For example, Pakistan has three National Days, none of which is named the ”National Day”. This signals the use of a ”class” of National Days, that are equally important in the foundation of the nation, and a ”class” of less important official public holidays.

A bank holiday is a public holiday in the United Kingdom or a colloquialism for public holiday in Ireland. There is no automatic right to time off on these days, although the majority of the population is granted time off work or extra pay for working on these days, depending on their contract.^[1] The first official bank holidays were the four days named in the Bank Holidays Act 1871, but today the term is colloquially (albeit incorrectly) used for public holidays which are not officially bank holidays, for example Good Friday and Christmas Day.

Prior to 1834, the Bank of England observed about thirty-three saints' days and religious festivals as holidays, but in 1834, this was reduced to just four: 1 May (May Day), 1 November (All Saints Day), Good Friday, and Christmas Day. In 1871, the first legislation relating to bank holidays was passed when Liberal politician and banker Sir John Lubbock introduced the Bank Holidays Act 1871, which specified the days in the table set out below.^[2] The English people were so thankful that they called the first Bank Holidays St Lubbock's Days for a while.^[3] Scotland was treated separately because of its separate traditions; for example, New Year is a more important holiday there.^{[citation needed]}