Cardiff uses Europe/London — UTC+00:00 (GMT) in standard time and UTC+01:00 (BST) during daylight saving time. It is located in Wales, United Kingdom. The live clock shows the current local time and updates every second.
Everything you need to know about Cardiff's time zone, UTC offset, and Daylight Saving Time schedule.
Cardiff uses UTC+00:00 in standard time. This is the offset used outside the daylight saving period.
UTC+01:00 (BST) during daylight saving time. Clocks move forward one hour in spring and back one hour in autumn.
The official IANA time zone name for Cardiff is Europe/London. This identifier is used in programming, operating systems and calendar applications worldwide.
Spring forward: 29 March 2026 at 01:00 → 02:00
Fall back: 25 October 2026 at 02:00 → 01:00
Spring forward: 28 March 2027 at 01:00 → 02:00
Fall back: 31 October 2027 at 02:00 → 01:00
Spring forward: 26 March 2028 at 01:00 → 02:00
Fall back: 29 October 2028 at 02:00 → 01:00
Spring forward: 25 March 2029 at 01:00 → 02:00
Fall back: 28 October 2029 at 02:00 → 01:00
London, Birmingham, Glasgow, Manchester, Sheffield
Currency: Pound Sterling (GBP). Calling code: +44. Languages: English.
Cardiff is the capital and largest city of Wales. Cardiff had a population of 381,516 in 2025 and forms a principal area officially known as the City and County of Cardiff (Welsh: Dinas a Sir Caerdydd). The city is the eleventh largest in the United Kingdom.
Located in the southeast of Wales, the city sits within the Cardiff Capital Region, which consists of 1.5 million people, accounting for roughly half the nation's total population. Cardiff is the county town of the historic county of Glamorgan and from 1974 to 1996 of South Glamorgan. It belongs to the Eurocities network of the largest European cities.
A small town until the early 19th century, its prominence as a port for coal when mining began in the region helped its expansion. In 1905, it was ranked as a city and in 1955 proclaimed capital of Wales. The Cardiff urban area covers a larger area outside the county boundary, including the towns of Dinas Powys and Penarth.
Cardiff is the main commercial centre of Wales as well as the base for the Senedd, the Welsh Parliament. At the 2021 census, the unitary authority area population was put at 362,400, an increase of 4.7% compared to the 2011 census when the population was 346,100...
Source: Wikipedia contributors — Cardiff. Adapted text is available under CC BY-SA 4.0; see licence details. Reviewed by the TimeZoria AI Editorial Team.
372,089 residents (GeoNames city population; metro areas may be larger).
Wales, United Kingdom.
Europe/London · UTC+00:00 (GMT).
Observes DST.
Pound Sterling (GBP) · +44.
Newport, Bristol, Swansea
Cardiff International Airport (CWL) about 14.6 km from the city coordinates. Source: OurAirports (public domain).
2024 averages: daily highs 14.1°C and lows 7.7°C. Warmest month: August (average high 20.0°C); coolest month: January (average low 2.1°C). Source: Open-Meteo (CC BY 4.0).
As the capital city of Wales, Cardiff is the main engine of growth in the Welsh economy. Though the population of Cardiff is about 10% of the Welsh population, the economy of Cardiff makes up nearly 20% of Welsh GDP and 40% of the city's workforce are daily in-commuters from the surrounding South Wales area. Source: Wikipedia contributors · CC BY-SA 4.0 (adapted).
Region: Wales · IANA zone: Europe/London · Open data sources and licence details: TimeZoria AI licenses.
Current time in major cities compared to Cardiff. Times update live every second.
Note on DST transitions: The offsets shown above reflect the current live offset, which changes twice a year due to Daylight Saving Time. Different regions change their clocks on different dates, which means the difference between Cardiff and another city can vary by 1 hour for a short period in spring and autumn. Always verify the exact time difference around DST transition dates for critical scheduling.
Ask any question about time, zones or conversions in natural language. The AI assistant will understand your query and provide a precise answer.
Ask: "What time is it in Madrid?" — The built-in assistant instantly provides the current time and offset without needing an API key.
AI knows over 600 IANA time zones and can answer questions about these zones.
Connect your own API keys (OpenAI, OpenRouter, Gemini, Anthropic, DeepSeek, Requesty) — full control.
Without an API key the module uses built-in zone logic — fast and delay-free.
Model is optional: leave it blank to use the provider default, or enter any model ID supported by the selected provider.
Cardiff's time zone affects business hours, travel plans and international calls. The Europe/London zone is used for local scheduling, transport and everyday life in Wales.
TimeZoria AI uses your browser's built-in Intl API and the IANA tz database to always display the correct Cardiff time — including DST changes — without any network requests.
Check the current time in other major cities — all on TimeZoria AI.
Common questions about Cardiff's time zone, UTC offset, and DST.