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Aux États-Unis et au Canada, l’heure du Pacifique (HNP) est appelée en anglais Pacific Time Zone (PTZ) ; plus précisément Pacific Standard Time (PST) lors de l’heure d'hiver et Pacific Daylight Time (PDT) en heure d'été. Au Mexique, elle est appelée en espagnol Tiempo del Pacífico ou Zona Noroeste.
Prior to 1983, the current Alaska Time Zone (UTC−09:00) was known as the Yukon Time Zone, observing Yukon Standard Time (YST). This time zone included Canada's Yukon Territory and a small portion of Alaska including Yakutat. The Alaska Panhandle communities were in the Pacific Time Zone, while most of the interior was on UTC−10:00. [6]
Time zones give specific areas on the Earth a time of day that is earlier or later than the neighboring time zones. This is because when it is daytime on one side of the earth, it is night-time on the other side. There are 24 time zones dividing the earth into different times, each with its own name, like the North American Eastern Time Zone.
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 ( UTC ), resulting in UTC−04:00. AST is observed in parts of North America and some Caribbean islands. During part of the year, some portions of the zone observe daylight ...
La PDT è evidenziata in rosso. L' ora legale del Pacifico (in inglese originale Pacific Daylight Time, abbreviato in PDT) è l' ora legale utilizzata d' estate negli Stati Uniti e in Canada che si ottiene sottraendo 7 ore dall'ora di Greenwich ( UTC-7 ). Il fuso orario di questa zona si basa sul tempo solare medio del 120º meridiano ovest di ...
Standard time was first adopted in Mexico in 1922, under a decree by President Álvaro Obregón establishing two time zones. One time zone based on 105°W (7 hours behind GMT) covered most of the country, from Baja California to Veracruz and Oaxaca. A second time zone based on 90°W (6 hours behind GMT) covered the southeastern part of the ...
Instance of. time zone. Named after. Pacific Ocean. Said to be the same as. UTC−08:00 (standard time), UTC−07:00 ( daylight saving time) Authority file. Q847142. Library of Congress authority ID: no2011152458.
