Fall Back

Have you ever wondered why we spring forward and fall back?

It all started with Benjamin Franklin

American inventor and politician Benjamin Franklin wrote an essay called “An Economical Project for Diminishing the Cost of Light” to the editor of The Journal of Paris in 1784. In the essay, he suggested, although jokingly, that Parisians could economize candle usage by getting people out of bed earlier in the morning, making use of the natural morning light instead.

History of DST in the United States

In the U.S., Daylight Saving Time – or “fast time”, as it was called then – was first introduced in 1918 when President Woodrow Wilson signed it into law to support the war effort during World War I. The initiative was sparked by Robert Garland, a Pittsburgh industrialist who had encountered the idea in the United Kingdom. A passionate campaigner for the use of DST in the United States, he is often called the “father of Daylight Saving”.

The seasonal time change was repealed just seven months later. However, some cities – including Pittsburgh, Boston, and New York – continued to use it until President Franklin D. Roosevelt instituted year-round DST in the United States in 1942.

“War Time” in the U.S.

Year-round DST, also called “War Time”, was in force during World War II, from February 9, 1942 to September 30, 1945. The change was implemented 40 days after the bombing of Pearl Harbor and during this time, the U.S. time zones were called “Eastern War Time”, “Central War Time”, and “Pacific War Time”. After the surrender of Japan in mid-August 1945, the time zones were relabeled “Peace Time”.

Britain applied “Double Summer Time” during World War II by setting the clocks two hours ahead of GMT during the summer and one hour ahead of GMT during the winter.

Modern DST in the U.S.

In the United States, DST caused widespread confusion from 1945 to 1966 for trains, buses, and the broadcasting industry because states and localities were free to choose when and if they would observe DST. Congress decided to end the confusion and establish the Uniform Time Act of 1966 that stated DST would begin on the last Sunday of April and end on the last Sunday of October. However, states still had the ability to be exempt from DST by passing a state ordinance.

The U.S. Congress extended DST to a period of ten months in 1974 and eight months in 1975, in hopes to save energy following the 1973 oil embargo. The trial period showed that DST saved the energy equivalent of 10,000 barrels of oil each day, but DST still proved to be controversial. Many complained that the dark winter mornings endangered the lives of children going to school. After the energy crisis was over in 1976, the U.S. changed their DST schedule again to begin on the last Sunday in April. DST was amended again to begin on the first Sunday in April in 1987. Further changes were made after the introduction of the Energy Policy Act of 2005.

Daylight Saving Today

Daylight Saving Time (sometimes called Daylight Savings Time) is now in use in over 70 countries worldwide and affects over a billion people every year. The beginning and end dates vary from one country to another. The European Union adopted the “Summer Time” period that was used in the United Kingdom for many years, where DST begins on the last Sunday in March and ends on the last Sunday in October.

The DST schedule in the U.S. was revised several times throughout the years. From 1987 to 2006, the country observed DST for about seven months each year. The current schedule was introduced in 2007 and follows the Energy Policy Act of 2005, which extended the period by about one month. Today, DST starts on the second Sunday in March and ends on the first Sunday in November. Currently, most of the United States observes DST except for Hawaii and most of Arizona, as well as the U.S. insular areas of Puerto Rico, the U.S. Virgin Islands, American Samoa, and Guam.

Information from www.timeanddate.com