This EST to GMT converter turns any time in Eastern Standard Time (EST) into Greenwich Mean Time (GMT), using your device clock so daylight saving is applied automatically. GMT is 5 hours ahead of EST. EST is UTC−5 (EDT: UTC−4); GMT is UTC+0 (BST: UTC+1).
EST covers New York, Toronto, Miami; GMT covers London, Edinburgh, Dublin (IST). Because both zones change their clocks on different dates, the difference is not constant through the year. The tables below show both cases, and the converter at the top always uses the rule in force on the date you pick.
EST and GMT UTC offsets
EST
UTC−5
Eastern Standard Time
EDT UTC−4 from March 8 to November 1, 2026
GMT
UTC+0
Greenwich Mean Time
BST UTC+1 from March 29 to October 25, 2026
EST to GMT conversion table
| EST | GMT |
|---|---|
| 12 am | 5 am |
| 3 am | 8 am |
| 6 am | 11 am |
| 8 am | 1 pm |
| 9 am | 2 pm |
| 10 am | 3 pm |
| 11 am | 4 pm |
| 12 pm | 5 pm |
| 1 pm | 6 pm |
| 2 pm | 7 pm |
| 3 pm | 8 pm |
| 4 pm | 9 pm |
| 5 pm | 10 pm |
| 6 pm | 11 pm |
| 8 pm | 1 amnext day |
| 10 pm | 3 amnext day |
Frequently asked questions
What is the time difference between EST and GMT?
GMT is 5 hours ahead of EST. That comes from the UTC offsets: EST is UTC−5 and GMT is UTC+0. For example, 9 am EST = 2 pm GMT.
Is GMT ahead of or behind EST?
GMT is 5 hours ahead of EST, so when it is noon in EST it is 5 pm in GMT. Ahead means the clock there already shows a later time; a call at 5 pm EST lands at 10 pm GMT.
Does EST or GMT observe daylight saving time in 2026?
EST switches to EDT (UTC−4) on March 8 and back on November 1 in 2026. GMT switches to BST (UTC+1) on March 29 and back on October 25. Between those dates the difference in the table above shifts by an hour, which is the usual cause of missed calls in spring and autumn.
What is the best time for a meeting between EST and GMT?
Standard office hours (9 am to 5 pm) overlap from 9 am to 12 pm EST, which is 2 pm to 5 pm GMT. Pick a slot inside that window and both sides stay within a normal working day. Check the daylight saving dates above, because the window moves by an hour when only one side has changed clocks.
Which cities use EST and GMT?
EST (Eastern Standard Time) is used in New York, Toronto, Miami, Atlanta. GMT (Greenwich Mean Time) is used in London, Edinburgh, Dublin (IST). Some cities inside a zone skip daylight saving, noted in parentheses, so their offset matches only part of the year.