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Other systems in the Atlantic basin use Atlantic Standard Time.

Keeping Florida on daylight-saving time permanently would put it in sync with Nova Scotia on Atlantic Standard Time instead of with New York.

The efforts to join Atlantic Standard Time would mean that, for about four months out of the year, some New England states would be an hour ahead of the rest of the Eastern time zone.

That’s right: Eastern daylight saving time is actually the same thing as Atlantic Standard Time.

It’s currently midnight Atlantic Standard Time, which covers the islands in the immediate path of Irma.