New York vs London Time Difference

London, UK is 5 hours ahead of New York, USA. When it is 9:00 AM in New York, it is 2:00 PM in London. The two cities have approximately 3 hours of business hours overlap for scheduling meetings.

Also searched as: time difference between NYC and the UK, NY vs London, time in New York vs London, London to New York time, UK to NY time difference, and New York to England time difference. New York City (NYC) and London, England share roughly 3 hours of business overlap each weekday — making transatlantic meetings easier than most.

What is the best time to call London from New York?

The best time to call London from New York is during the 3-hour business hours overlap window when both cities are within 9 AM - 5 PM local time.

When do business hours overlap between New York and London?

New York and London have approximately 3 hours of overlapping business hours per day (based on 9 AM - 5 PM in both cities).

Business Context

Both New York and London are major financial centers. Traders, bankers, and financial analysts frequently coordinate across these markets, with the overlap period being particularly active for cross-market transactions.

Business hours overlap for approximately 3 hours per day between New York and London.

Calling London from New York

Calling London from New York? Start your day early. Your 7-8 AM calls arrive during their afternoon, before they leave the office.

Best Call Window: 7:00 AM - 11:00 AM New York time (12:00 PM - 4:00 PM in London)

Working with London-Based Teams

When managing projects with London from New York, designate overlap hours for synchronous work (meetings, pair programming) and use the non-overlap time for focused individual work.

Meeting Planning Tips

The 5-hour gap requires some flexibility. Early morning calls in New York often work best.

New York to London Time — Full Conversion Table

London is 5 hours ahead of New York (4 hours during the brief DST transition windows in March and November). The table below maps every hour of the New York day to its London equivalent — useful whether you're scheduling a meeting or asking "what time is 4pm New York in London?"

London to New York Time (Reverse Direction)

Going the other way: New York is 5 hours behind London. If you're in the UK trying to figure out what time it is in NYC — for example, "4 PM UK is what time in New York?" — use this reverse table:

UK ↔ NYC Time Conversion

If you're using shorthand like "NYC" and "UK" instead of the full city names, the math is identical: NYC (New York City, Eastern Time) is 5 hours behind the UK (London, GMT or BST). NYC switches to and from Daylight Saving Time roughly two weeks before the UK does, which creates short windows each March and November where the difference temporarily becomes 4 hours instead of 5.

Common UK-to-NYC questions answered: 4 PM UK = 11 AM NYC, 2 PM UK = 9 AM NYC, 5 PM UK = 12 PM NYC, 9 PM UK = 4 PM NYC. For NYC-to-UK: 9 AM NYC = 2 PM UK, 11 AM NYC = 4 PM UK, 12 PM NYC = 5 PM UK, 5 PM NYC = 10 PM UK.

NYSE and LSE Market Overlap

The New York Stock Exchange (NYSE) opens at 9:30 AM ET (2:30 PM London time) and the London Stock Exchange (LSE) closes at 4:30 PM GMT (11:30 AM ET). This gives traders a 2-hour overlap window from 9:30 AM–11:30 AM ET (2:30 PM–4:30 PM London) when both exchanges are active — the busiest period for transatlantic equities and forex trading.

Frequently Asked Questions

Related Time Comparisons

• New York vs Tokyo
• London vs Tokyo
• New York vs Singapore
• London vs Singapore
• New York vs Dubai
• London vs Dubai
• New York vs Sydney
• London vs Sydney
• Best Time to Call London from New York
• Time in New York
• Time in London
• Time Zone Converter
• Global Meeting Planner