GMT to EST
Convert Greenwich Mean Time (GMT) to Eastern Standard Time (EST). EST is 5 hours behind GMT.
Conversion table
| GMT | EST |
|---|---|
| 12:00 AM | 7:00 PM(-1 day) |
| 6:00 AM | 1:00 AM |
| 9:00 AM | 4:00 AM |
| 12:00 PM | 7:00 AM |
| 3:00 PM | 10:00 AM |
| 6:00 PM | 1:00 PM |
| 9:00 PM | 4:00 PM |
Based on standard-time offsets. Daylight Saving Time can shift the real difference by an hour — use the live tool for exact, current conversions.
Business hours overlap
A 9:00 AM–5:00 PM working day in GMT runs from 4:00 AM to 12:00 PM in EST.
Daylight Saving Time
Both GMT and EST observe Daylight Saving Time, so the time difference stays roughly constant year-round — though the brief weeks when their clock changes don't line up can shift it by an hour.
Greenwich Mean Time (GMT)
Major cities: London, Dublin, Lisbon
Eastern Standard Time (EST)
Major cities: New York, Toronto, Atlanta, Miami
Other conversions
Convert between any time zones with DST handled automatically.
Open the Time Zone Converter