Date and time representation by country

Different conventions exist around the world for date and time representation, both written and spoken.These standard notations have been adopted by many countries as a national standard, e.g., BS EN 28601 in the UK and similarly in other EU countries, ANSI INCITS 30-1997 (R2008), and FIPS PUB 4–2 in the United States (FIPS PUB 4-2 withdrawn in United States).Some regions utilize 24-hour time notation in casual speech as well, such as regions that speak German, French, or Romanian, though this is less common overall; other countries that utilize the 24-hour clock for displaying time physically may use the 12-hour clock more often in verbal communication.[citation needed] Most people who live in countries that use one of the clocks dominantly are still able to understand both systems without much confusion; the statements "three o'clock" and "15:00", for example, are easily recognized as synonyms.[citation needed] In most countries there are no formal abbreviations to distinguish before and after noon, many people will commonly use informal designations, such as "in the morning" or "in the evening".
World map showing the usage of 12 or 24-hour clock in different countries.
24-hour
24-hour (12-hour orally)
Both in common use
12-hour
calendarDate formatseven-day week24-hour clock12-hour clock6-hour clockpunctuationweekendISO 8601big-endianadopted by many countries as a national standardDate format by countrylittle-endianGermanFrenchRomanianbus lanesBBC websiteSpanishPortugueseEnglishRussianGermanic languagesFranceVietnamFinlandIndonesiaDate and time notation in AfricaDate and time notation in AsiaArabiaDate and time notation in BahrainDate and time notation in IndiaDate and time notation in IranDate and time notation in JapanDate and time notation in South KoreaDate and time notation in MongoliaDate and time notation in NepalDate and time notation in PakistanDate and time notation in RussiaDate and time notation in ThailandDate and time notation in the PhilippinesDate and time notation in TurkeyDate and time notation in VietnamNorth AmericaDate and time notation in CanadaDate and time notation in the United StatesDate and time notation in EuropeDate and time notation in FranceDate and time notation in ItalyDate and time notation in SpainDate and time notation in SwedenDate and time notation in the NetherlandsDate and time notation in the United KingdomOceaniaDate and time notation in AustraliaCalendar dateCommon Locale Data RepositoryList of date formats by countryAntigua and BarbudaAustraliaAustriaBahrainBelgiumBrazilCanadaColombiaCroatiaCyprusCzech RepublicDenmarkEthiopiaGermanyGreeceHungaryIrelandMongoliaNetherlandsNew ZealandNorwayPakistanPhilippinesPolandRussiaSerbiaSouth AfricaSouth KoreaSwedenSwitzerlandTaiwanThailandTurkeyUkraineUnited KingdomUnited States