Daylight Saving Time

9 Fun Facts

(1) Beginning in 2007, most of the United States begins Daylight Saving Time at 2:00 a.m. on the second Sunday in March and reverts to standard time on the first Sunday in November. In the U.S., each time zone switches at a different time.

(2) The European Union has an equivalent called Summer Time. Equatorial and tropical countries generally do not have daylight savings time, and China only has one time zone.

(3) The official spelling is Daylight Saving Time (NOT Daylight Savings Time). But the truth is, the name is inaccurate anyway, since no daylight is saved – only shifted.

(4) For the U.S. and its territories, Daylight Saving Time is NOT observed in Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, the Commonwealth of Northern Mariana Islands, and Arizona . The Navajo Nation participates in the Daylight Saving Time policy, even in Arizona, due to its large size and location in three states.

(5) There is a public health benefit to Daylight Saving Time, as it decreases traffic accidents. Several studies in the U.S. and Great Britain have found that the DST daylight shift reduces net traffic accidents and fatalities by close to one percent. An increase in accidents in the dark mornings is more than offset by the evening decrease in accidents.

(6) Not everyone likes daylight saving time, like people who wake at dawn, or whose schedules are otherwise tied to sunrise, such as farmers. Canadian poultry producer Marty Notenbomer notes, "The chickens do not adapt to the changed clock until several weeks have gone by.”

(7) The idea of daylight saving was first conceived by Benjamin Franklin during his trip as an American delegate in Paris in 1784.

(8) Standard time in time zones was instituted in the U.S. and Canada by the railroads on November 18, 1883. Prior to that, time of day was a local matter, and most cities and towns used some form of local solar time, maintained by a well-known clock (on a church steeple, for example, or in a jeweler's window).

(9) A man, born just after 12:00 a.m. DST, circumvented the Vietnam War draft by using a daylight saving time loophole. When drafted, he argued that standard time, not DST, was the official time for recording births in his state of Delaware in the year of his birth. Thus, under official standard time he was actually born on the previous day—and that day had a much higher draft lottery number, allowing him to avoid the draft.