Atlantic Daylight Time (Canada)

Atlantic Time - Canada

AT ~ Atlantic Coast Time

Atlantic Standard Time (AST) = GMT-4

Atlantic Daylight Time (ADT) = GMT-3

What time zone Atlantic Daylight Time?

Atlantic Daylight Time is the Atlantic Time Zone of the United States of America (USA) and Canada.  Atlantic Standard Time (AST) is 4 hours behind Greenwich Mean Time (GMT-4).

Does Atlantic Time observe Daylight Saving Time?

In most states in the USA and in most provinces in Canada, Daylight Saving Time (DST) is observed.  During DST the time is shifted forward by 1 hour to ADT;  which is 3 hours behind Greenwich Mean Time (GMT-3).

After the Summer months Atlantic Time is shifted back by 1 hour to Atlantic Standard Time (EST) or (GMT-4).