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Time zone abbreviations for both Standard Time and Daylight Saving Time are shown exactly as they appear in the database. See strftime and its "%Z" field. Some of zone records use 3 or 4 letter abbreviations that are tied to physical time zones, others use numeric UTC offsets.
Such designations can be ambiguous; for example, "CST" can mean China Standard Time (UTC+08:00), Cuba Standard Time (UTC−05:00), and (North American) Central Standard Time (UTC−06:00), and it is also a widely used variant of ACST (Australian Central Standard Time, UTC+9:30). Such designations predate both ISO 8601 and the internet era; in ...
Puerto Rico uses Atlantic Standard Time throughout the year, with no Daylight Saving Time, due to how close it is to the Equator. This is also true in the United States Virgin Islands . [ 1 ] Hence, during the summer, clocks in Puerto Rico match those in New York City and Miami , while during the winter clocks on the island match those in ...
Time zone: UTC−04:00 : Date format: dd/mm/yyyy mm/dd/yyyy: Driving side: Right: Calling code +1 (787), +1 (939) USPS abbreviation: PR. ISO 3166 code ... Puerto Rico ...
List of time zones by country – sorted by number of current time zones in the world; List of UTC offsets – current UTC offsets; List of time zone abbreviations – abbreviations; List of tz database time zones – zones used by many computer systems as defined by IANA; List of military time zones; Country-specific: List of time zones by U.S ...
The Atlantic Time Zone is a geographical region that keeps standard time—called Atlantic Standard Time (AST)—by subtracting four hours from Coordinated Universal Time , resulting in UTC−04:00. AST is observed in parts of North America including several Caribbean islands.
Standard time zones of the United States and its surrounding areas [9] Time zone Standard DST Region Atlantic: UTC−04:00 (not observed) Puerto Rico, U.S. Virgin Islands: Eastern: UTC−05:00: UTC−04:00
Central (Kenton observes Mountain time on a de facto basis) Oregon: UTC−07:00 MT Yes Northern 80% of Malheur County: UTC−07:00 MST Mountain Standard Time UTC−08:00 PT Most of state: UTC−08:00 PST Pacific Standard Time Pennsylvania: UTC−05:00 ET: Yes: Eastern Puerto Rico: UTC−04:00 AT: No: Atlantic Standard Time Rhode Island: UTC− ...