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  1. Coordinated Universal Time (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 .

    • 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. Jan 5, 2024 · Sandford Fleming, after missing a train due to a time confusion in 1876, proposed unifying the world's schedules, giving rise to Coordinated Universal Time (UTC)

  3. 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.

    • Jonathan D. Betts
  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.

  5. 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.

  6. Jul 31, 2023 · Coordinated Universal Time (UTC) is the worldwide reference time scale computed by the Bureau international des poids et mesures − the international organization dealing with matters related to measurement science and measurement standards.

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