| GMT and Coordinated Universal Time UTC can be seen equivalent when fractions of a second are not important | The Eastern Time Zone is also known as Eastern Standard Time EST falls mostly along the east coast of North America |
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| Eastern Time ET In the United States and Canada, this time zone is generally called Eastern Time ET | GMT and UTC Greenwich Mean Time GMT is originally referring to mean solar time at the Royal Observatory in Greenwich, London |
North American Time Zones Hours from Standard Time Daylight Saving Time -10 -9 -8 -7 -6 -5 -4 -3:30 -3 -2:30 Time zones in North America.
| Effective since 2007, the local time changes from EST to EDT at 02:00 LST to 03:00 LDT on the second Sunday in March, and returns at 02:00 LDT to 01:00 LST on the first Sunday in November, in the U | |
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| Specifically, it is Eastern Standard Time EST when standard time is observed winter , and Eastern Daylight Time EDT when daylight saving time is observed spring, summer and autumn | Time Zones in the United States |
North American Time Zones The time zones in North America, in the west from Hawaii and Alaska to the east cost of USA and Canada and all the way to Nova Scotia and Newfoundaland.
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