Cardiff
UTC+1United Kingdom · BST
Tue, 15 Sept 2026
Timezone Guide
Cardiff, United Kingdom runs on UTC+1. Clocks move forward each spring and back each autumn: UTC+0 in winter, UTC+1 in summer. Next change: 26 Oct. There is a 5-hour difference between Cardiff and New York. Standard 9-to-6 working hours overlap for about 4 hours a day with New York. A good time to connect: 14:00–18:00 in Cardiff lines up with 09:00–13:00 in New York. Cardiff and London currently share the same clock. Standard 9-to-6 working hours overlap for about 9 hours a day with London. A good time to connect: 09:00–18:00 in Cardiff lines up with 09:00–18:00 in London. There is a 8-hour difference between Cardiff and Tokyo. Standard 9-to-6 working hours overlap for about 1 hours a day with Tokyo. A good time to connect: 09:00–10:00 in Cardiff lines up with 17:00–18:00 in Tokyo. This timezone is also shared with cities such as Lisbon, Lagos, Casablanca. Keeping these offsets in mind makes it easier to schedule calls or travel to and from Cardiff.
Practical Info
Cardiff (United Kingdom) is home to roughly 370K people. Today brings about 16.6 hours of daylight: sunrise at 04:54, sunset at 21:30. Clocks move forward each spring and back each autumn: UTC+0 in winter, UTC+1 in summer. Next change: 26 Oct. It sits in the Northern Hemisphere, about 51° north of the equator. Traffic drives on the left.
Flag
United Kingdom
Capital
London
Continent
Europe
Time Zone
BST · Europe/London
Coordinates
51.48°N, 3.18°W
Currency
GBP (£)
Calling Code
+44
Driving Side
Left
Hemisphere
Northern
Language
English
Measurement System
Metric
Did You Know?
Once the Biggest Coal Port on Earth
In 1913 Cardiff exported roughly 10.7 million tonnes of coal, more than any other port in the world. The Coal Exchange here is said to have hosted the first ever million-pound deal. Within fifty years the trade was essentially finished.
The clock: Cardiff runs on GMT and BST. Lying further west than London, its sunsets come about fifteen minutes later on the same clock — a small dividend of sharing a time zone with a country to your east.
Annual Daylight
Working Hours
7h overlap