London
New York
Convert GMT to EST
Greenwich Mean Time to Eastern Standard Time — New York is 5 hours behind London
Quick Facts
Time Difference
-5 hours
GMT Full Name
Greenwich Mean Time
EST Full Name
Eastern Standard Time
GMT to EST Conversion Table
Related Conversions
About GMT and EST Time Zones
GMT (Greenwich Mean Time) is UTC+0 and covers cities like London, Dublin, Lisbon. EST (Eastern Standard Time) is UTC-5 and covers cities like New York, Washington D.C., Miami.
When it's 12:00 PM (noon) in London (GMT), it's 7:00 AM in New York (EST). The time difference between GMT and EST is 5 hours — New York is behind London.
The best meeting window is 9:00 AM–12:00 PM GMT (2:00 PM–5:00 PM EST).
Daylight Saving Time
EST observes Daylight Saving Time and becomes EDT (Eastern Daylight Time) during summer months, shifting clocks forward by 1 hour to UTC-4.
During DST transitions, the time difference between GMT and EST may shift by ±1 hour. Always verify the current offset above for the most accurate conversion.
Use our world clock tool to compare London and New York with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between GMT and EST?
New York (EST) is 5 hours behind London (GMT). The offset is -5 hours.
Is EST ahead or behind GMT?
EST is 5 hours behind GMT. GMT is UTC+1 and EST is UTC-4.
When it's 12:00 PM in London, what time is it in New York?
When it's 12:00 PM (noon) in London (GMT), it's 7:00 AM in New York (EST).
When it's 5:00 PM in London, what time is it in New York?
When it's 5:00 PM in London (GMT), it's 12:00 PM in New York (EST).
Does EST change for Daylight Saving Time?
Yes. EST (Eastern Standard Time, UTC-5) becomes EDT (Eastern Daylight Time, UTC-4) in summer, shifting clocks forward 1 hour.