The Eastern Time Zone (ET) is an area 5 hours behind Greenwich Mean Time (GMT-5) during the winter months (referred to as Eastern Standard Time or EST) and 4 hours behind Greenwich Mean Time (GMT-4) during the summer months (referred to as Eastern Daylight Time or EDT).

Is London in GMT?

London uses Greenwich Mean Time (GMT) during standard time and British Summer Time (BST) during Daylight Saving Time (DST), or summer time.

Who uses GMT?

From 1884 until 1972, GMT was the international standard of civil time. Though it has now been replaced by Coordinated Universal Time (UTC), GMT is still the legal time in Britain in the winter, used by the Met Office, Royal Navy and BBC World Service.

What’s GMT 5 time?

GMT-05 is a time offset that subtracts 5 hours from Greenwich Mean Time (GMT). It is observed in the ACT, COT, CST, ECT, EST, PET during standard time, and in the CDT, EASST during the other months (Daylight saving time).

Did the clocks go back?

Daylight Saving Time Today

Today, most Americans spring forward (turn clocks ahead and lose an hour) on the second Sunday in March (at 2:00 A.M.) and fall back (turn clocks back and gain an hour) on the first Sunday in November (at 2:00 A.M.).