Ciekawostka: In 1986 Congress & President Ronald Reagan signed Public Law 99-359, which changed Daylight Saving Time from the last Su

Evidence: 39 • authority: 72

Most of the United States observes daylight saving time (DST), the practice of setting the clock forward by one hour when there is longer daylight during the day, so that evenings have more daylight and mornings have less. Exceptions include Arizona (except for the Navajo Nation, which observes daylight saving time), Hawaii, and the territories of American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the United States Virgin Islands. The Uniform Time Act of 1966 established a uniform set of rules for states opting to observe daylight saving time. In the US, daylight saving time starts on the second Sunday in March and ends on the first Sunday in November, with the time change…

Evidence: 24 • authority: 88

How is Daylight Saving Time still a thing?: Disruptions from Daylight Saving Time transitions lead to cognitive performance deficits. Visual search, looking for targets among distractors, underlies many critical professions and must often be performed optimally regardless of the time of day, week, or year. However, external events can disrupt the ability to perform. The current study examined one such specific event: Daylight Saving Time (DST) transitions—when the clock shifts forward or backward by one hour. Performance on a visual search task was assessed using “big data” from the mobile app Airport Scanner (Kedlin Co.), wherein players serve as airport security screeners searching for pr…

Evidence: 24 • authority: 72

Daylight saving time (DST), also referred to as daylight savings time, daylight time (United States and Canada), or summer time (United Kingdom, European Union, and others), is the practice of advancing clocks to (in theory) make better use of the longer daylight available during summer by having darkness fall at a later clock time. The typical implementation of DST is to adjust clocks ahead of standard time by one hour in spring or late winter, and to set clocks back by one hour in the autumn (or fall in North American English, hence the mnemonic: "spring forward and fall back"). In many countries, the part of the year when DST is observed is much longer than the part aligned to standard t…

Evidence: — • authority: 35