London to New York Time
GMT to EST Converter — 9 AM GMT is 4:00 AM EST
London is 5 hours ahead of New York. Convert any time between London (GMT/BST) and New York (EST/EDT) instantly.
London
United Kingdom
New York
United States
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Time Zone Comparison
London to New York Time Conversion Table
| London (GMT) | New York (EST) |
|---|---|
| 12:00 AM | 7:00 PM |
| 2:00 AM | 9:00 PM |
| 4:00 AM | 11:00 PM |
| 6:00 AM | 1:00 AM |
| 8:00 AM | 3:00 AM |
| 10:00 AM | 5:00 AM |
| 12:00 PM | 7:00 AM |
| 2:00 PM | 9:00 AM |
| 4:00 PM | 11:00 AM |
| 6:00 PM | 1:00 PM |
| 8:00 PM | 3:00 PM |
| 10:00 PM | 5:00 PM |
London & New York — Business & Scheduling Guide
London (United Kingdom) is a leading center for finance and international trade, with key industries in finance, insurance, media, and professional services. New York (United States) is a global financial and tech hub, known for technology, finance, healthcare, and entertainment. With a 5-hour time difference, professionals frequently schedule cross-border calls between these two cities for international trade, remote team collaboration, and client meetings.
Scheduling Meetings Between London and New York
The 5-hour difference between London and New York requires careful scheduling. The best overlap window is typically 2–4 hours when both cities are within working hours. British business culture values politeness and punctuality, with typical hours of 9 AM–5:30 PM. US business hours typically run 9 AM–5 PM, with a culture that values punctuality and efficiency. Teams often designate specific "overlap hours" for real-time collaboration and use asynchronous communication (Slack, email, recorded video) for the rest of the day.
Daylight Saving Time Considerations
Both London and New York observe Daylight Saving Time. London uses GMT/BST (switching between standard and daylight time), while New York uses EST/EDT. If their DST transitions happen on different dates — which is common, as the US, EU, and other regions change clocks on different weekends — the effective time difference between the two cities can shift by 1 hour for several weeks. Always double-check the actual offset during March–April and October–November.
GMT to EST — Quick Reference
GMT (GMT/BST) stands for the timezone used in London, United Kingdom (UTC+0). EST (EST/EDT) is the timezone used in New York, United States (UTC-5). London is 5 hours ahead of New York.
To convert GMT to EST, subtract 5 hours from GMT time. For example, GMT 9:00 AM = EST 4:00 AM.
Key Facts
- •Time difference: London (UTC+0) is 5 hours ahead of New York (UTC-5).
- •Daylight Saving Time: London observes DST (GMT/BST). New York observes DST (EST/EDT).
- •Regions: London is located in United Kingdom and uses the GMT/BST time zone. New York is located in United States and uses the EST/EDT time zone.
- •Best time to call: The best time to call between London and New York is 2:00 PM to 4:00 PM in London time, when both cities have overlapping standard working hours.
Frequently Asked Questions
What is the time difference between London and New York?
London is 5 hours ahead of New York.
What time is it in New York when it's 9 AM in London?
When it's 9:00 AM in London, it is 4:00 AM in New York.
What time is 9 PM GMT in EST?
9 PM GMT (London time) is 4:00 PM EST (New York time). This is a common time people check when scheduling evening calls across these two time zones.
When is the best time to schedule a meeting between London and New York?
The best time to schedule a meeting is between 2:00 PM to 4:00 PM in London time, when both cities are within standard working hours (9 AM – 5 PM). This gives you the maximum overlap window for real-time collaboration.
How do I convert GMT to EST?
GMT (GMT/BST) is the timezone for London, United Kingdom (UTC+0). EST (EST/EDT) is the timezone for New York, United States (UTC-5). London is 5 hours ahead of New York. Quick examples: 9 AM GMT = 4:00 AM EST, 12 PM GMT = 7:00 AM EST, 3 PM GMT = 10:00 AM EST, 6 PM GMT = 1:00 PM EST.
Is London ahead of or behind New York?
London is 5 hours ahead of New York. When it's noon in London, it's 7:00 AM in New York.
Does London or New York change clocks for Daylight Saving Time?
Yes, London observes DST and switches between GMT/BST. New York observes DST and switches between EST/EDT.
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