What is the time difference between London and New York?

London is normally 5 hours ahead of New York (EST). The gap narrows to 4 hours when the UK switches to BST (last Sunday March). It returns to 5 hours when the US falls back in November.

World Clock
United Kingdom

Updated Mar 2026

Current Time in United Kingdom

Q: What time is it in United Kingdom right now?

United Kingdom spans 1 timezone: GMT. Use the live clocks on this page for the exact local time in each major city.

Q: How many timezones does United Kingdom have?

United Kingdom uses 1 timezone: GMT. Not all regions observe daylight saving time on the same schedule.

Q: When is the best time to call someone in United Kingdom?

Aim for 9:00 AM to 5:00 PM local time in the specific city you are calling. Because United Kingdom spans 1 timezone, the right call window depends on the city, not just the country. Use the Best Time to Call calculator for an exact overlap window.

Live clocks for every United Kingdom city — UTC offsets, DST status, and inter-city time gaps.

, United Kingdom

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GMT DST observed

Full Details

This country’s timezone structure

The UK — GMT in winter, BST in summer

The UK observes GMT (UTC+0) in winter and BST (UTC+1) in summer, flipping on the last Sunday of March and October. The DST transition is called "British Summer Time" formally but casually "the clocks going forward / back". London anchors the European trading day for financial services, sits 5 h ahead of New York and 5.5 h behind Mumbai. Business hours 9 AM - 5:30 PM typically; the City of London 's trading floors open at 8 AM.

Regional context

Timezones across Europe

Europe stretches across four main timezones — GMT/BST (UK, Ireland, Portugal), CET/CEST (most of continental Europe), EET/EEST (Greece, Finland, the Baltics), and MSK (Russia's westernmost cities). Most countries observe DST in unison — last Sunday of March to last Sunday of October — creating clean 1-hour steps between neighbouring zones. Icelandic and Russian cities are exceptions with no seasonal shift.

United Kingdom Cities by Timezone

1 timezone · 1 city · live times

GMT

1 city

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Time differences may shift seasonally when cities observe different daylight saving schedules.

Frequently Asked Questions

Timezones, DST rules, and scheduling in United Kingdom

What time is it in United Kingdom right now?

United Kingdom spans 1 timezone — GMT — so there is no single answer. The live clocks above show the exact time in .

How many timezones does United Kingdom have?

United Kingdom uses a single timezone: GMT. The whole country follows the same clock year-round.

Does United Kingdom observe daylight saving time?

Yes. The UK switches from GMT (UTC+0) to British Summer Time (BST, UTC+1) on the last Sunday of March, and reverts on the last Sunday of October. In 2025: clocks go forward on 30 March at 1:00 AM, and fall back on 26 October at 2:00 AM.

When is the best time to call someone in United Kingdom?

Aim for 9:00 AM – 5:00 PM local time in the specific city. Because United Kingdom spans 1 timezones, the overlap window from your location differs between cities. Open any city page above for its full scheduling guide.

How accurate are the live clocks on this page?

All clocks update every second using your browser's timezone engine with current DST rules applied automatically. The displayed times match the official local time in each city — no manual refresh needed.