Portsmouth uses Europe/London — UTC+00:00 (GMT) in standard time and UTC+01:00 (BST) during daylight saving time. It is located in England, United Kingdom. The live clock shows the current local time and updates every second.
Everything you need to know about Portsmouth's time zone, UTC offset, and Daylight Saving Time schedule.
Portsmouth 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 Portsmouth 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.
Portsmouth ( PORTS-məth) is a port city and unitary authority in Hampshire, England. Most of Portsmouth is located on Portsea Island off the south coast of England in the Solent, making Portsmouth the only city in England not located primarily on the mainland.
The city is located 22 miles (35 km) south-east of Southampton, 50 miles (80 km) west of Brighton and Hove, and 74 miles (119 km) south-west of London. With a population last recorded at 208,100, it is the most densely populated city in the United Kingdom. Portsmouth forms part of the South Hampshire urban area with Gosport, Fareham, Havant, Eastleigh and Southampton.
Portsmouth's history can be traced to Roman times and it has contained a significant Royal Navy dockyard and base for centuries. Portsmouth was founded c. 1180 by Anglo-Norman merchant Jean de Gisors in the south-west area of Portsea Island, a location now known as Old Portsmouth. Around this time, de Gisors ordered the construction of a chapel dedicated to St Thomas Becket.
This became a parish church by the 14th century. Portsmouth was established as a town with a royal charter on 2 May 1194. The city is home to the first drydock ever built. It was constructed...
Source: Wikipedia contributors — Portsmouth. Adapted text is available under CC BY-SA 4.0; see licence details. Reviewed by the TimeZoria AI Editorial Team.
208,100 residents (GeoNames city population; metro areas may be larger).
England, United Kingdom.
Europe/London · UTC+00:00 (GMT).
Observes DST.
Pound Sterling (GBP) · +44.
Southampton, Bournemouth, Brighton
Southampton Airport (SOU) about 25.1 km from the city coordinates. Source: OurAirports (public domain).
2024 averages: daily highs 14.6°C and lows 9.1°C. Warmest month: August (average high 21.4°C); coolest month: January (average low 3.2°C). Source: Open-Meteo (CC BY 4.0).
Ten per cent of Portsmouth's workforce is employed at Portsmouth Naval Dockyard, which is linked to the city's biggest industry, defence; the headquarters of BAE Systems Surface Ships is in the city. BAE's Portsmouth shipyard received construction work on the two new Queen Elizabeth-class aircraft carriers. Source: Wikipedia contributors · CC BY-SA 4.0 (adapted).
Region: England · IANA zone: Europe/London · Open data sources and licence details: TimeZoria AI licenses.
Current time in major cities compared to Portsmouth. 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 Portsmouth 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.
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Portsmouth'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 England.
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Common questions about Portsmouth's time zone, UTC offset, and DST.