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  2. Pacific Time Zone - Wikipedia

    en.wikipedia.org/wiki/Pacific_Time_Zone

    The Pacific Time Zone (PT) is a time zone encompassing parts of western Canada, the western United States, and western Mexico. Places in this zone observe standard time by subtracting eight hours from Coordinated Universal Time ( UTC−08:00 ).

  3. Effects of time zones on North American broadcasting

    en.wikipedia.org/wiki/Effects_of_time_zones_on...

    Many Fox affiliates, and some independent stations carry a prime time newscast that is similarly affected by the timeshifting of the prime time schedule, meaning that if said late evening newscast starts at 9:00 p.m. Mountain Time on one network station, an affiliate of the same network in the Pacific time zone would air its news at 10:00 p.m.

  4. 12-hour clock - Wikipedia

    en.wikipedia.org/wiki/12-hour_clock

    The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods: a.m. (from Latin ante meridiem, translating to "before midday") and p.m. (from Latin post meridiem, translating to "after midday").

  5. West Coast states introduce legislation to make Pacific ...

    www.aol.com/west-coast-states-introduce...

    Here's where legislation stands in each West Coast state to make Pacific Standard Time permanent as people ready to set their clocks forward in March. ... 2024 at 5:58 PM. ... we'll set our clocks ...

  6. List of time zone abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_time_zone...

    PST: Pacific Standard Time (North America) UTC−08:00: PT (PST/PDT) Pacific Time (North America) UTC−08:00 / UTC−07:00: PWT: Palau Time [11] UTC+09:00: PYST: Paraguay Summer Time [12] UTC−03:00: PYT: Paraguay Time [13] UTC−04:00: RET: Réunion Time: UTC+04:00: ROTT: Rothera Research Station Time UTC−03:00: SAKT: Sakhalin Island Time ...

  7. Time zone - Wikipedia

    en.wikipedia.org/wiki/Time_zone

    Time zones of the world. A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time.

  8. Time in the United States - Wikipedia

    en.wikipedia.org/wiki/Time_in_the_United_States

    The clocks run by these services are kept synchronized with each other as well as with those of other international timekeeping organizations. It is the combination of the time zone and daylight saving rules, along with the timekeeping services, which determines the legal civil time for any U.S. location at any moment.

  9. Time synchronization in North America - Wikipedia

    en.wikipedia.org/wiki/Time_synchronization_in...

    COAA's Radio Clock [21] F6CTE's CLOCK [15] WWVH: 5, 10, and 15 MHz AM Voice with modified IRIG-Hformat time code on 100 Hz sub-carrier (CCIR code) HF radio and antenna (plus software if automatic updating of computer time is desired) TrueTime TL-3 WWV Receiver; CHU: 3.33 MHz, 7.85 MHz, 14.67 MHz Bell 103 modem tones, decodable by most computer ...