William Willett.
Daylight saving time is not specific to a particular scientific name, but it is often referred to as DST or daylight time adjustment. It is a practice of setting the clocks forward by one hour during the warmer months to extend evening daylight.
Daylight Saving Time (DST) is called Summer Time in Europe, Russia and South America.
Arizona and Hawaii do not have Day light saving. http://www.time.gov/
Hawaii and most of Arizona do not observe daylight saving time. There is also at least one city (I think it's Cincinnati, Ohio) and its suburbs that does not observe DST.
Daylight Saving Time is the name of the plan to set clocks ahead in spring and back in fall.
As in most of the United States, daylight saving (no s) time in Texas begins on the second Sunday of March at 2 AM local time (2 AM CST in most of the state and an hour later for the part of Texas in the Mountain Time Zone). In 2012, the second Sunday of March is the 11th.
Ohio is in only one time zone - the Eastern time zone. Ohio does utilize Daylight Saving Time. Ohio is GMT/UTC - 5h during Standard Time (EST). Ohio is GMT/UTC - 4h during Daylight Saving Time (EDT).
DST and Time ZonesYes, time zone names typically change when DST is observed. American English replaces "standard time" with "daylight time": for example, Pacific Standard Time (PST) becomes Pacific Daylight Time (PDT).The timezones themselves don't change ... The Pacific Timezone, for example, remains even when the clocks there are at PST+1.The name "Summer Time" is far more popular around the world than the name "Daylight Saving Time" for the semiannual clock adjustments. Countries that use that name add the word "Summer" before the word "Time" to differentiate between their two time offsets. For example, Central European Time (UTC+1) becomes Central European Summer Time (UTC+2), and Brasilia Time (UTC-3) becomes Brasilia Summer Time (UTC-2).
Daylight Saving Time begins on the second Sunday of March in the United States, Canada, the Islands of Cuba, Bermuda, Turks and Caicos and Saint-Pierre et Miquelon, in the Thule, Greenland area, and in ten Mexican cities that border the U. S. That is also the day when Summer Time (the name used for Daylight Saving Time in most of the world) ends in Uruguay. All of that day's time changes take place at 2 AM local Standard Time/ Uruguay Summer Time except in Cuba, where the change happens at midnight Cuba Standard Time.Daylight Saving Time ends in all the places mentioned in the first paragraph except Cuba and Uruguay at 2 AM local Daylight Saving Time on the first Sunday of November.
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.In the European Union, Summer Time begins and ends at 1:00 a.m. Universal Time (Greenwich Mean Time). It begins the last Sunday in March and ends the last Sunday in October. In the EU, all time zones change at the same moment.
Cuba Standard Time is GMT (UTC) - 5Cuba Standard Time is the same as Eastern Standard Time (UTC - 5 hours), and Cuba Daylight Saving Time is the same as Eastern Daylight Saving Time (UTC - 4 hours). Also, Cuba has been beginning and ending Daylight Saving Time on the same dates as the United States, Canada, Bermuda and the Bahamas since fall 2012 (2nd Sunday of March to the 1st Sunday of November). The only differences are that Cuba begins DST two hours earlier than New York, etc. and ends DST one hour earlier.
Benjamin Franklin first suggested Daylight Saving Time in 1784, but modern DST was not proposed until 1895 when an entomologist from New Zealand, George Vernon Hudson, presented a proposal for a two-hour daylight saving shift to the Wellington Philosophical Society. The conception of DST was mainly credited to an English builder, William Willett in 1905, when he presented the idea to advance the clock during the summer months. His proposal was published two years later and introduced to the House of Commons in February 1908. The first Daylight Saving Bill was examined by a select committee but was never made into a law. It wasn't until World War I, in 1916, that DST was adopted and implemented by several countries in Europe who initially rejected the idea.