GMT to EST converter

UK Time (GMT) is UTC+0 and observes British Summer Time (BST, UTC+1, roughly March–October). It covers London, Manchester and Edinburgh.

Eastern Time (EST) is UTC−5 and observes daylight saving (EDT, UTC−4, roughly March–November). It covers New York, Toronto, Miami and Atlanta.

Eastern Time is typically 5 hours behind UK Time, though daylight saving can shift the difference by an hour at some times of year.

Best time to call Eastern Time from UK Time

Office hours overlap for about 3 hours a day: 2:00 PM–5:00 PM in UK Time is 9:00 AM–12:00 PM in Eastern Time. Book calls inside this window and nobody is out of hours. Daylight saving can shift these times by an hour at some points in the year.