What is a public holiday? At its simplest, it is a day designated by a government on which most public institutions close and many workers get the day off. But the details — who decides, who must close, and whether you are paid — vary enormously from country to country. This plain-language guide explains the essentials.
The basic definition
A public holiday (also called a national holiday or, in the UK, a bank holiday) is a date set aside by law or official decree for commemoration or rest. Typical examples include New Year’s Day, independence days, religious festivals like Christmas or Eid, and days honouring historical figures. On these days, government offices, banks, schools and often private businesses close or operate with reduced hours. The key word is public: the holiday is declared by public authority, not by private choice.
Who actually gets the day off?
This is where it gets interesting — a public holiday does not automatically mean everyone stops working. In most countries, public-sector employees are guaranteed the day off, while private-sector rules depend on employment law and individual contracts. In the United States, for instance, there is no federal law requiring private employers to give any holiday off at all; it is simply customary. In France, only 1 May is legally guaranteed for nearly all employees. Essential services — hospitals, police, fire services, utilities — always operate, usually with holiday pay premiums for staff.
How public holidays are chosen
Governments typically designate holidays through legislation or official decree. The mix usually reflects a country’s history and culture: independence or unification days, the birthdays of founders or monarchs, and the major religious festivals of the population. New holidays are occasionally added — Juneteenth became a US federal holiday in 2021, and several countries have added days for reconciliation or remembrance in recent years. Lunar-calendar holidays like Eid or Chinese New Year move each year, with exact dates confirmed by religious authorities or official moon-sighting committees.
Public holidays around the world
Counts vary dramatically. Some countries observe fewer than ten public holidays a year; others, like India or Thailand, have twenty or more when regional days are included. Cambodia and Sri Lanka are among the world’s most generous. The number is not just trivia — it shapes work culture, travel patterns and even economic output, which is why governments weigh new holidays carefully. Whatever the count, the purpose is the same everywhere: shared moments of rest, remembrance and celebration that punctuate the working year.
Public holidays vs the weekend: the substitute-day principle
What happens when a public holiday lands on a Saturday or Sunday? Different countries answer differently, and the answers reveal a lot about work culture. The UK adds a substitute weekday — hence Monday 28 December 2026 standing in for Boxing Day, which falls on a Saturday. The US shifts the observance to the nearest weekday — Friday 3 July 2026 for Independence Day. Australia declares an additional public holiday on the Monday. Some countries, though, simply let the holiday “disappear” into the weekend with no replacement. The principle behind substitutes is fairness: a day off you cannot use is no day off at all. When planning your year, always check not just the holiday’s nominal date but which weekday you actually get — the two are not always the same.