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  1. Coordinated Universal Time or UTC is the primary time standard globally used to regulate clocks and time. It establishes a reference for the current time, forming the basis for civil time and time zones. UTC facilitates international communication, navigation, scientific research, and commerce. UTC has been widely embraced by most countries and ...

    • Universal Time

      Universal Time (UT or UT1) is a time standard based on...

    • Ephemeris Time

      The term ephemeris time (often abbreviated ET) can in...

  2. Coordinated Universal Time. Coordinated Universal Time (or UTC) is the standard time system of the world. It is the standard by which the world regulates clocks and time. It is, within about 1 second, mean solar time at 0° longitude. The standard before was Greenwich Mean Time (GMT). UTC and GMT are almost the same.

  3. en.wikipedia.org › wiki › UTC%E2%88%9204:00UTC−04:00 - Wikipedia

    UTC−2. (BRT+1) UTC04:00 is an identifier for a time offset from UTC of −04:00. It is observed in the Eastern Time Zone (e.g., in Canada and the United States) during the warm months of daylight saving time, as Eastern Daylight Time. The Atlantic Time Zone observes it during standard time (cold months). It is observed all year in the ...

    • UTC−04:00
  4. en.wikipedia.org › wiki › Time_zoneTime zone - Wikipedia

    Each time zone is defined by a standard offset from Coordinated Universal Time (UTC). The offsets range from UTC−12:00 to UTC+14:00, and are usually a whole number of hours, but a few zones are offset by an additional 30 or 45 minutes, such as in India and Nepal.

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  6. Mar 28, 2024 · Coordinated Universal Time (UTC), international basis of civil and scientific time, which was introduced on January 1, 1960. The unit of UTC is the atomic second, and UTC is widely broadcast by radio signals. These signals ultimately furnish the basis for the setting of all public and private.

    • Jonathan D. Betts
  7. Coordinated Universal Time (UTC) 01:13: 29. Monday, May 20, 2024. UTC is the common time standard across the world. Coordinated Universal Time (UTC) is the basis for civil time today. This 24-hour time standard is kept using highly precise atomic clocks combined with the Earth's rotation.

  8. Coordinated Universal Time - 4.5 hours. UTC -4:30. now 30 minutes behind New York. UTC-4:30 is 30 minutes ahead of the time in New York when New York is on standard time, and 30 minutes behind the time in New York when New York is on daylight saving time. UTC-4:30 does not change between summer time and winter time.

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