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United Kingdom • Live Time Zone Guide

UK Time Zone

The United Kingdom uses one civil time zone nationwide. It follows Greenwich Mean Time (GMT, UTC+00:00) in the standard-time period and British Summer Time (BST, UTC+01:00) in summer. England, Scotland, Wales and Northern Ireland change clocks together.

The UK is not on GMT all year. GMT is the winter/standard-time label; BST is one hour ahead during the summer-time period. For software and date-aware calculations, use Europe/London rather than hardcoding GMT or BST.
UK civil zones1 national clockEngland · Scotland · Wales · Northern Ireland
Seasonal labelsGMT ↔ BSTUTC+00:00 ↔ UTC+01:00
IANA identifierEurope/LondonDate-aware civil-time rules
GMT vs BST Time Zone Converter Europe Time Zone Map
Search UK time-zone terms or open the related current-time, GMT/BST, map and conversion references.
Popular: London Time Zone Time in the UK GMT Time Now BST Time Now UTC Offsets Europe Time Zone Map

UK Time Zone at a Glance

The core rule is simple—one UK clock—but seasonal terminology creates most of the confusion. Use these shortcuts for the exact question you need answered.

GMT

GMT vs BST

See when the UK uses UTC+00:00 and when it moves to UTC+01:00.

Compare the two periods → ↻

UK Clock Changes

Check the last-Sunday rule and the exact 2026 change dates.

See clock changes → UK

One Clock Across the UK

England, Scotland, Wales and Northern Ireland share the same civil time.

See nation coverage → IANA

Europe/London

Use the location-based IANA identifier instead of hardcoding GMT or BST.

Understand the identifier → LIVE

Current Time in the UK

Open the national current-time page for live UK clocks and date.

See UK time now → ⇄

Compare UK Time

Compare the UK with Paris, New York, Tokyo, Sydney and other locations.

Compare live offsets →

UK Time Zone: GMT in Winter, BST in Summer

The UK has one national civil clock, but its abbreviation and UTC offset change seasonally. The table below separates the two periods clearly.

London-specific time-zone guide →
UK PeriodAbbreviationUTC OffsetTypical RuleLive Status
Standard TimeGMTUTC+00:00Last Sunday in October → last Sunday in MarchDate-aware
Summer TimeBSTUTC+01:00Last Sunday in March → last Sunday in OctoberDate-aware
GMT Time Now BST Time Now GMT vs UTC

One Time Zone Across the Four UK Nations

England, Scotland, Wales and Northern Ireland always share the same UK civil clock. They move between GMT and BST together.

EnglandUK timeLondon, Liverpool, Manchester, Birmingham and the rest of England.→ ScotlandUK timeEdinburgh, Glasgow, Aberdeen, Inverness and the rest of Scotland.→ WalesUK timeCardiff, Swansea, Newport, Wrexham and the rest of Wales.→ Northern IrelandUK timeBelfast, Derry/Londonderry and the rest of Northern Ireland.→ City Zone GuideLondon Time ZoneCity-specific GMT/BST, UTC offset and IANA details.→ National ClockCurrent Time in UKLive country clock, date and major UK locations.→ Nearby EuropeFrance Time ZoneUsually one hour ahead of the UK.→ Visual GeographyEurope Time Zone MapSee the UK in its European time-zone context.→

UK Time Zone by Nation & Major Location

The entire UK uses Europe/London rules. The city rows below are live examples of the same national clock rather than separate time zones.

Current time across the UK →
Nation / LocationIANA ZoneCurrent TimeAbbreviationUTC Offset
England · LondonEurope/LondonLive——
Scotland · EdinburghEurope/LondonLive——
Wales · CardiffEurope/LondonLive——
Northern Ireland · BelfastEurope/LondonLive——
LiverpoolEurope/LondonLive——
GlasgowEurope/LondonLive——
BelfastEurope/LondonLive——
EdinburghEurope/LondonLive——
UK Clock Changes · 2026

When Do the UK Clocks Change?

Under current UK rules, clocks go forward by one hour at 1:00 a.m. GMT on the last Sunday in March and go back by one hour at 2:00 a.m. BST on the last Sunday in October. In 2026, the change dates are March 29 and October 25.

Daylight Saving Time British Summer Time Greenwich Mean Time Time Zone Converter
UK Time NowLive timeLoading Europe/London
Current UK ZoneGMT / BSTLoading current offset
Next ChangeDate-awareLoading next transition
2026 Autumn ChangeOct 252:00 a.m. BST → 1:00 a.m. GMT

UK Clock Changes: 2026–2030

The recurring legal rule is more important than any one year's dates: the last Sunday in March starts BST and the last Sunday in October returns the UK to GMT.

YearBST StartsGMT ReturnsSpring ShiftAutumn Shift
2026March 29October 2501:00 GMT → 02:00 BST02:00 BST → 01:00 GMT
2027March 28October 3101:00 GMT → 02:00 BST02:00 BST → 01:00 GMT
2028March 26October 2901:00 GMT → 02:00 BST02:00 BST → 01:00 GMT
2029March 25October 2801:00 GMT → 02:00 BST02:00 BST → 01:00 GMT
2030March 31October 2701:00 GMT → 02:00 BST02:00 BST → 01:00 GMT

Does the UK Observe Daylight Saving Time?

Yes. The UK changes clocks twice each year. The summer period is called British Summer Time (BST), not simply “GMT+1” in ordinary UK usage.

SpringAt 1:00 a.m. GMT on the last Sunday in March, the clock jumps forward to 2:00 a.m. BST.
SummerThe UK runs one hour ahead of GMT at UTC+01:00.
AutumnAt 2:00 a.m. BST on the last Sunday in October, the clock moves back to 1:00 a.m. GMT.
WinterThe UK returns to GMT at UTC+00:00.

UK Time Is Not the Same as “GMT” All Year

Calling UK time “GMT” year-round is a common shortcut, but it is inaccurate during British Summer Time. A date-aware system should use Europe/London, then read the resulting abbreviation and UTC offset for the date being calculated.

GMTGreenwich Mean Time · UTC+00:00 · UK standard time.
BSTBritish Summer Time · UTC+01:00 · UK summer time.
Europe/LondonIANA rule set that automatically represents both periods.
UTCThe international reference scale; UK standard time aligns with UTC, while BST is UTC+1.

GMT, BST, UTC & Europe/London — What Each Means

These terms are related but not interchangeable. Separating them prevents the most common UK time-zone mistakes.

Standard Time

GMT · UTC+00:00

Greenwich Mean Time is the UK's standard-time label in the winter period.

Summer Time

BST · UTC+01:00

British Summer Time is one hour ahead of GMT and is used during the UK summer-time period.

IANA

Europe/London

The preferred identifier for software because it includes recurring GMT/BST transitions and historical rule changes.

Reference Scale

UTC

UK standard time is aligned with UTC. During BST, UK civil time is UTC+01:00.

National Coverage

One UK Clock

England, Scotland, Wales and Northern Ireland always change together under the same civil-time rule.

Scope

UK ≠ All British Territories

British Overseas Territories are outside the UK's Europe/London civil-time system and use local time-zone rules.

Quick UK Time Zone Compare

Compare the UK with another major location right now. The calculation uses current IANA offsets, so differences automatically reflect seasonal clock changes on both sides.

Live time
Current abbreviation and UTC offset
⇄
Live time
Current abbreviation and UTC offset
Open Full Converter

How the UK Time Zone Works

Six rules answer most questions about the United Kingdom's time zone, UTC offset and seasonal changes.

01 · One Clock

The Whole UK Changes Together

England, Scotland, Wales and Northern Ireland share one national civil time.

02 · Winter

GMT Is UTC+00:00

During standard time, UK civil time aligns with Coordinated Universal Time.

03 · Summer

BST Is UTC+01:00

The UK advances clocks by one hour for British Summer Time.

04 · Spring Rule

Last Sunday in March

At 01:00 GMT the clock jumps forward to 02:00 BST.

05 · Autumn Rule

Last Sunday in October

At 02:00 BST the clock repeats the 01:00 hour in GMT.

06 · Software

Use Europe/London

The IANA identifier is safer than hardcoding GMT or BST because the offset depends on the date.

Europe/London vs GMT or BST

Europe/London is a location-based IANA time-zone identifier. GMT and BST are the seasonal labels used by the UK. If an application needs to calculate UK time across dates, Europe/London is the correct choice because it knows when the offset changes.

London Time Zone GMT Time Now BST Time Now GMT vs UTC UTC Offsets

UK UTC Offset & International Differences

The UK's current offset is date-aware. Because other countries change clocks on different dates—or do not change them at all—the time difference from the UK is not always a fixed number of hours.

UK ↔ ParisParis is normally one hour ahead because the UK and most of continental Europe change on the same EU-style dates.
UK ↔ New YorkUsually five hours apart, but temporarily four because U.S. and UK clock-change dates do not match.
UK ↔ São PauloThe difference changes when the UK enters or leaves BST because São Paulo currently stays on one offset year-round.
UK ↔ SydneyThe gap changes seasonally on both sides because the UK and Sydney observe DST in opposite hemispheres.
Visual Geography

See the UK on the Europe Time Zone Map

The UK's map intent is covered by the Europe Time Zone Map. Use it to compare the UK with Western and Central European time-zone boundaries without confusing map intent with this GMT/BST reference.

Open Europe Time Zone Map World Time Zone Map
United Kingdom · GMT / BST · Europe/London

Looking for the Current Time in the United Kingdom?

This page explains the UK's time-zone rules. If your main question is what time it is in the UK right now, use the current-time pages below for live clocks, dates and location-specific planning.

Country ClockCurrent Time in the UK CapitalCurrent Time in London ScotlandCurrent Time in Edinburgh Northern IrelandCurrent Time in Belfast

Sources & Methodology

UK clock-change rules are checked against official UK guidance and the National Physical Laboratory. Live clocks, abbreviations and UTC offsets use the Europe/London IANA time zone rather than a hardcoded GMT/BST assumption.

GOV.UK — When do the clocks change? National Physical Laboratory — When do the clocks change? NPL — UK national time scale UTC(NPL) IANA Time Zone Database

Last reviewed: August 20, 2026 · IANA tzdb reference at review: 2026c. UK time rules can change by law; live values are calculated by location and date.

UK Time Zone FAQ

What time zone is the UK in?

The UK uses GMT (UTC+00:00) in the standard-time period and BST (UTC+01:00) during summer. Europe/London is the IANA identifier for UK civil time.

Is the UK on GMT all year?

No. The UK moves one hour ahead to British Summer Time from the last Sunday in March until the last Sunday in October.

What is the UK UTC offset?

UTC+00:00 during GMT and UTC+01:00 during BST. The live offset is date-dependent.

Does all of the UK have the same time?

Yes. England, Scotland, Wales and Northern Ireland use the same civil time and change clocks together.

When do the UK clocks change in 2026?

UK clocks went forward on March 29, 2026 and go back on October 25, 2026.

What is the IANA time zone for the UK?

Use Europe/London for date-aware UK time calculations.

Is BST the same as GMT?

No. BST is UTC+01:00, one hour ahead of GMT at UTC+00:00.

Is UK time the same as London time?

Yes. London follows the same clock as the rest of the UK; the separate London page provides city-specific context.

Is the UK always five hours ahead of New York?

No. It is usually five hours ahead, but the gap can temporarily be four hours because the UK and U.S. change clocks on different dates.

Do British Overseas Territories use UK time?

Not necessarily. British Overseas Territories are geographically separate and use their own local time-zone rules.