Atlantic Standard Time is the time in ニューヨーク より 1 時間 だけ早いです when ニューヨーク is on standard time, and the same as the time in ニューヨーク when ニューヨーク is on daylight saving time.
Atlantic Standard Time does not change between summer time and winter time.
The IANA time zone identifiers for Atlantic Standard Time are America/Anguilla, America/Antigua, America/Aruba, America/Barbados, America/Blanc-Sablon, America/Curacao, America/Dominica, America/Grenada, America/Guadeloupe, America/Kralendijk, America/Lower_Princes, America/Marigot, America/Martinique, America/Montserrat, America/Port_of_Spain, America/Puerto_Rico, America/Santo_Domingo, America/St_Barthelemy, America/St_Kitts, America/St_Lucia, America/St_Thomas, America/St_Vincent と America/Tortola.
