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  2. Dead Frontier - Wikipedia

    en.wikipedia.org/wiki/Dead_Frontier

    Dead Frontier is a free-to-play, browser-based survival horror game which takes place in a post-apocalyptic, zombie-infested setting. It is operated by Creaky Corpse Ltd. [1] [2] Dead Frontier was released for open beta on April 21, 2008, [3] [4] and has over ten million registered accounts.

  3. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    The Shortt–Synchronome clock, an electrical driven pendulum clock designed in 1921, was the first clock to be a more accurate timekeeper than the Earth itself. [167] A succession of innovations and discoveries led to the invention of the modern quartz timer. The vacuum tube oscillator was invented in 1912. [168]

  4. Timeline for the day of the September 11 attacks - Wikipedia

    en.wikipedia.org/wiki/Timeline_for_the_day_of...

    10:28:25: The North Tower of the World Trade Center collapses, 1 hour and 42 minutes after the impact of Flight 11. The Marriott Hotel, located at the base of the two towers, is also destroyed. 10:50:19: All five stories of the Pentagon on the West side where American 77 crashed collapsed due to the fire started by the crash.

  5. Time zone - Wikipedia

    en.wikipedia.org/wiki/Time_zone

    Time zones of the world. 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. Dead time - Wikipedia

    en.wikipedia.org/wiki/Dead_time

    Dead time. For detection systems that record discrete events, such as particle and nuclear detectors, the dead time is the time after each event during which the system is not able to record another event. [1] An everyday life example of this is what happens when someone takes a photo using a flash - another picture cannot be taken immediately ...

  7. Daylight saving time - Wikipedia

    en.wikipedia.org/wiki/Daylight_saving_time

    For the same clock in autumn, the local time would appear to repeat the hour preceding midnight, i.e. it would jump from 23:59:59.9 to 23:00:00.0. In most countries that observe seasonal daylight saving time, clocks revert in winter to "standard time".

  8. Time - Wikipedia

    en.wikipedia.org/wiki/Time

    Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, and into the future. It is a component quantity of various measurements used to sequence events, to compare the duration of events or the intervals between them, and to quantify rates of change of quantities in material reality or in the conscious ...

  9. Eastern Time Zone - Wikipedia

    en.wikipedia.org/wiki/Eastern_Time_Zone

    17:20, 14 July 2024 EST [ refresh] 18:20, 14 July 2024 EDT [ refresh] Observance of DST. DST is observed in parts of this time zone. The Eastern Time Zone ( ET) is a time zone encompassing part or all of 23 states in the eastern part of the United States, parts of eastern Canada, and the state of Quintana Roo in Mexico . Places that use: