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  2. Mountain Time Zone - Wikipedia

    en.wikipedia.org/wiki/Mountain_Time_Zone

    In the United States and Canada, the Mountain Time Zone is to the east of the Pacific Time Zone and to the west of the Central Time Zone. In some areas, starting in 2007, the local time changes from MST to MDT at 2 am MST to 3 am MDT on the second Sunday in March and returns at 2 am MDT to 1 am MST on the first Sunday in November.

  3. List of time offsets by U.S. state and territory - Wikipedia

    en.wikipedia.org/wiki/List_of_time_offsets_by_U...

    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− ...

  4. Effects of time zones on North American broadcasting

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

    An hour of syndicated programming time (between 7:00 and 8:00 p.m. in the Eastern and Pacific time zones) is lost in the Central and Mountain time zones since network primetime in those areas starts at 7:00 p.m., forcing stations in Mountain or Central time (or in parts of both zones) to choose between airing their 6:00 p.m. newscast and ...

  5. Daylight saving time in the United States - Wikipedia

    en.wikipedia.org/wiki/Daylight_saving_time_in...

    The Ohio Clock in the U.S. Capitol being turned forward for the country's first daylight saving time on March 31, 1918 by the Senate sergeant at arms Charles Higgins.. Most of the United States observes daylight saving time (DST), the practice of setting the clock forward by one hour when there is longer daylight during the day, so that evenings have more daylight and mornings have less.

  6. What time does daylight saving time end? When is it ... - AOL

    www.aol.com/time-does-daylight-saving-time...

    The clocks will "fall back" an hour at 2 a.m. local time on Sunday, Nov. 3. When did daylight saving time start in 2024? Daylight saving time began in 2024 on Sunday, March 10, at 2 a.m. local ...

  7. When does Daylight Saving Time begin? Here's when to ... - AOL

    www.aol.com/does-daylight-saving-time-begin...

    All to know about the seasonal practice of daylight saving time, including when it begins, when it ends, its long history and more.

  8. How the end of daylight saving time affects your health - AOL

    www.aol.com/lifestyle/daylight-saving-time...

    Daylight saving time ends at 2 a.m. local time on Sunday, Nov. 3, when we "fall back" and gain an extra hour of sleep. We’ll get an extra hour of daylight in the mornings but lose an hour of ...

  9. Permanent time observation in the United States - Wikipedia

    en.wikipedia.org/wiki/Permanent_time_observation...

    Permanent standard time is considered by circadian health researchers and safety experts worldwide to be the best option for health, safety, schools, and economy, including the American Academy of Sleep Medicine, National Sleep Foundation, American College of Chest Physicians, National Safety Council, American College of Occupational and Environmental Medicine, Canadian Sleep Society, World ...