Eastern Daylight Time

Eastern Daylight Time (EDT) is the daylight saving time zone for the eastern part of the United States, parts of eastern Canada, and certain other places. It is four hours behind Coordinated Universal Time (UTC−4).

Overview

Eastern Daylight Time is used in several countries, including the United States and Canada, as well as some Caribbean and South American countries. It is used during the warmer months of the year, when daylight lasts longer. During this period, clocks are set one hour ahead to extend evening daylight.

Usage

In the United States, the Uniform Time Act of 1966 established the system of uniform Daylight Saving Time throughout the US. The dates of beginning and end of daylight saving time are set by the United States Department of Transportation.

In Canada, each province and territory is responsible for deciding whether to use daylight saving time or not. Most of the country, with some exceptions, uses daylight saving time and switches to Eastern Daylight Time during the summer months.

Impact

The use of Eastern Daylight Time can impact many aspects of life, including business and travel. It can also have effects on energy use, as the extended evening daylight can reduce the need for artificial lighting.

See also

• Eastern Standard Time
• Daylight saving time by country
• Time in the United States
• Time in Canada