Holiday guide
Public holidays, bank holidays and observances: what is the difference?
What each calendar label means, with real examples of days off and substitute dates.
Does a holiday listing mean you can take the day off? First check its country, year and scope. The same label can have different legal effects in different places.
What is a public holiday?
It is a date recognised under a country's or region's rules. Poland's 2027 calendar includes Christmas Eve on 24 December: the Polish public holidays law has listed it since 2025. That tells you the statutory date, but your work schedule, pay and any replacement day still depend on the applicable employment rules.
What is a bank holiday?
In the UK, “bank holiday” is the label used on the government date list. It does not automatically entitle every employee to paid leave: GOV.UK explains the employment rule. Check the country and your contract before treating a bank holiday as a personal day off.
What is an observance?
An observance commemorates an event without necessarily making it a non-working holiday. Czech law distinguishes state holidays and other holidays from “significant days”; the latter remain working days unless they also fall on a holiday. See sections 1–4 of the Czech law and the Czech 2027 calendar.
What is a substitute or observed day?
It is a separate day designated under a particular rule when a holiday falls on another day. For example, the UK list for England and Wales names Monday 27 December 2027 as the substitute day for Christmas Day. Do not assume that rule applies elsewhere: Poland does not set one nationwide Monday for every Saturday holiday; its Labour Inspectorate explains the working-time rule. Check the relevant country and year before using a substitute date.