enGB

En-GB, commonly written as en-GB or enGB, is a locale tag used in computing to designate English as it is written and used in the United Kingdom. It is a variant of English distinct from other national varieties such as en-US and is defined within the IETF BCP 47 standard for language tags. The dash form en-GB is the canonical tag in most localization workflows, while enGB without a dash may appear in older software, code identifiers, or certain systems.

British English conventions underpin en-GB localizations. Spelling typically follows UK norms, e.g., colour, centre, realise, with vocabulary that includes terms like lorry, petrol, biscuit, and holiday. Punctuation and style can differ from American usage, and some contexts may favour single quotation marks. Date formats usually employ day-month-year (for example, 31 December 2020), and the 24-hour clock is commonly used in official settings. Currency associated with en-GB is the pound sterling (GBP).

In software and digital products, en-GB localizations adjust not only spelling but also date and number formats, time representations, and terminology to align with UK conventions. The tag also acts as a general marker for British English across regions that comprise the United Kingdom, including England, Scotland, Wales, and Northern Ireland, while acknowledging regional variation within the UK.

Overall, en-GB serves as a standard reference for UK English in multilingual and internationalized environments, guiding language, regional form, and cultural expectations in digital interfaces.