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  2. What Is Standard Time? - timeanddate.com

    www.timeanddate.com/time/standard-time.html

    Standard time is the local time in a country or region when Daylight Saving Time (DST) is not in use. Standard time is also known as winter time or normal time. ©iStockphoto.com/JaysonPhotography.

  3. Standard time - Wikipedia

    en.wikipedia.org/wiki/Standard_time

    Standard time is the synchronization of clocks within a geographical region to a single time standard, rather than a local mean time standard. Generally, standard time agrees with the local mean time at some meridian that passes through the region, often near the centre of the region.

  4. Daylight saving time - Wikipedia

    en.wikipedia.org/wiki/Daylight_saving_time

    In all countries that observe daylight saving time seasonally (i.e., during summer and not winter), the clock is advanced from standard time to daylight saving time in the spring, and it is turned back from daylight saving time to standard time in the autumn.

  5. Time zone - Wikipedia

    en.wikipedia.org/wiki/Time_zone

    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.

  6. What to know about standard time and daylight saving time

    www.9news.com/article/weather/accuweather/standard-time-and-daylight-savings...

    Standard time is the local time for a country or region when daylight saving time is not in use. In the U.S., standard time is in use from the first Sunday in...

  7. Standard Time, the time of a region or country that is established by law or general usage as civil time. The concept was adopted in the late 19th century in an attempt to end the confusion that was caused by each community’s use of its own solar time.

  8. "Standard time" is in effect for only a shrinking portion of the year, with daylight saving time having controlled the clock for 34 weeks — roughly eight months — in 2022.

  9. Daylight Saving Time Rules - NIST

    www.nist.gov/pml/time-and-frequency-division/popular-links/daylight-saving...

    During 2023, daylight saving time is in effect from March 12 at 2 a.m. (local time) to November 5 at 2 a.m. (local time). What are the current rules for daylight saving time? The rules for DST changed in 2007 for the first time in more than 20 years.

  10. Standard time Definition & Meaning - Merriam-Webster

    www.merriam-webster.com/dictionary/standard time

    The meaning of STANDARD TIME is the time of a region or country that is established by law or general usage as civil time; specifically : the mean time of a meridian that is a multiple of 15 arbitrarily applied to a local area or to one of the 24 time zones and designated as a number of hours earlier or later than Greenwich Mean Time.

  11. History of Time Zones and Daylight Saving Time (DST)

    www.bts.gov/.../geography/geospatial-portal/history-time-zones-and-daylight-saving

    The DOT Time Zone Boundary Geospatial layer is the verified digital representation of the current time zone delineations as written in the CFR, and is part of the National Transportation Atlas Database (NTAD).