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  2. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    The outdoor sirens are tested four times a year on the first non-holiday Monday of March, June, September, and December at 15:00 local time. The test consists of the general alarm for 2 minutes, followed by a 90-second gap before the "all clear" is sounded. There are usually around 15 to 20 general alarms, occurring locally, per year.

  3. Doomsday Clock - Wikipedia

    en.wikipedia.org/wiki/Doomsday_Clock

    The Clock was moved to 150 seconds (2 minutes, 30 seconds) in 2017, then forward to 2 minutes to midnight in 2018, and left unchanged in 2019. [6] It was moved forward to 100 seconds (1 minute, 40 seconds) in 2020, [ 7 ] 90 seconds (1 minute, 30 seconds) in 2023, [ 8 ] and 89 seconds (1 minute, 29 seconds) in 2025.

  4. Afterglow (Wilkinson song) - Wikipedia

    en.wikipedia.org/wiki/Afterglow_(Wilkinson_song)

    A music video to accompany the release of "Afterglow" was first released onto YouTube on 10 September 2013 at a total length of two minutes and fifty-two seconds. The video details a couple's five years of dating by tabulating the numbers, hours, days, and statistics of what they have done together since they first met.

  5. The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  6. 4′33″ - Wikipedia

    en.wikipedia.org/wiki/4′33″

    At the end of each sentence, there is information about each movement's duration in minutes and seconds; these are: 'I = 30 seconds', 'II = 2 minutes 23 seconds' and 'III = 1 minute 40 seconds'. [67] Tudor commented: "It's important that you read the score as you're performing it, so there are these pages you use. So you wait, and then turn the ...

  7. Four-minute warning - Wikipedia

    en.wikipedia.org/wiki/Four-minute_warning

    The four-minute warning was a public alert system conceived by the British Government during the Cold War and operated between 1953 and 1992. The name derived from the approximate length of time from the point at which a Soviet nuclear missile attack against the United Kingdom could be confirmed and the impact of those missiles on their targets.

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  9. Shot clock - Wikipedia

    en.wikipedia.org/wiki/Shot_clock

    The NCAA introduced a 45-second shot clock for the 1985-86 season; [13] several conferences had experimented with it for the two seasons prior. [14] It was reduced to 35 seconds in the 1993–94 season, [15] and 30 seconds in the 2015–16 season. [16] The NAIA also reduced the shot clock to 30 seconds starting in 2015–16. [17]

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