New York
London
Convert EST to GMT
Eastern Standard Time to Greenwich Mean Time — London is 5 hours ahead of New York
Quick Facts
Time Difference
+5 hours
EST Full Name
Eastern Standard Time
GMT Full Name
Greenwich Mean Time
EST to GMT Conversion Table
Related Conversions
About EST and GMT Time Zones
EST (Eastern Standard Time) is UTC-5 and covers cities like New York, Washington D.C., Miami. GMT (Greenwich Mean Time) is UTC+0 and covers cities like London, Dublin, Lisbon.
When it's 12:00 PM (noon) in New York (EST), it's 5:00 PM in London (GMT). The time difference between EST and GMT is 5 hours — London is ahead of New York.
The best meeting window is 2:00 PM–5:00 PM EST (9:00 AM–12:00 PM GMT).
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 EST and GMT may shift by ±1 hour. Always verify the current offset above for the most accurate conversion.
Use our world clock tool to compare New York and London with a visual timeline, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between EST and GMT?
London (GMT) is 5 hours ahead of New York (EST). The offset is +5 hours.
Is GMT ahead or behind EST?
GMT is 5 hours ahead of EST. EST is UTC-4 and GMT is UTC+1.
When it's 12:00 PM in New York, what time is it in London?
When it's 12:00 PM (noon) in New York (EST), it's 5:00 PM in London (GMT).
When it's 5:00 PM in New York, what time is it in London?
When it's 5:00 PM in New York (EST), it's 10:00 PM in London (GMT).
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.