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  2. List of atomic clocks - Wikipedia

    en.wikipedia.org/wiki/List_of_atomic_clocks

    Location Image CS1 [1] ... Taguig, Philippines; Caesium clocks, Hydrogen Maser [28] Cs Indonesian Institute of Sciences; ... List of atomic clocks.

  3. List of clock towers - Wikipedia

    en.wikipedia.org/wiki/List_of_clock_towers

    This is a list of clock towers by location, including only clock towers based on the following definition: A clock tower is a tower specifically built with one or more (often four) clock faces. Clock towers can be either freestanding or part of a church or municipal building such as a town hall.

  4. Philippine Standard Time - Wikipedia

    en.wikipedia.org/wiki/Philippine_Standard_Time

    The Clock tower of Manila City Hall is the icon for synchronizing the time in the whole Philippine archipelago, before an atomic clock was introduced in the country in 2012. The purposes of these Philippine "towering timepieces" are to tell the time and to serve as landmarks.

  5. List of tz database time zones - Wikipedia

    en.wikipedia.org/wiki/List_of_tz_database_time_zones

    The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [1] This is a list of time zones from release 2025a of the tz database. [2]

  6. List of time zones by country - Wikipedia

    en.wikipedia.org/wiki/List_of_time_zones_by_country

    This is a list representing time zones by country. Countries are ranked by total number of time zones on their territory. Time zones of a country include that of dependent territories (except Antarctic claims).

  7. Daylight saving time by country - Wikipedia

    en.wikipedia.org/wiki/Daylight_saving_time_by...

    Location Last year of time changes [e] Notes [1] Akrotiri and Dhekelia: Observed DST since 1939. Albania: Observed DST in 1940–1943, and since 1974. Algeria: 1981: Observed DST in 1916–1921, in the autumn of 1939, in 1944–1945, 1971, 1977–1978, and 1980–1981. Andorra: Observed DST since 1985. Argentina: 2009

  8. List of clock manufacturers - Wikipedia

    en.wikipedia.org/wiki/List_of_clock_manufacturers

    The following is a list of notable companies that produced, or currently produce clocks. Where known, the location of the company and the dates of clock manufacture follow the name. Where known, the location of the company and the dates of clock manufacture follow the name.

  9. List of largest clock faces - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_clock_faces

    A list of permanent working clocks with the largest faces in the world. Entries include all clocks with faces at least 4 m (13 ft) in diameter. Clocks can be located on the exterior or interior of buildings, and towers as well as on the ground as is the case with floral clock faces.