DAYLIGHT S.T. CHANGE CLOCKS TONIGHT, 11-5-17

Daylight saving time in the United States

Daylight S.T. was created so evenings have more daylight and mornings have less. Most areas of the United States observe daylight saving time (DST).  Except Arizona (except for the Navajo, who do observe daylight saving time on tribal lands),[1] Hawaii,[2] and the overseas territories of American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the United States Virgin Islands.

In 1966 the Uniform Time Act  was enacted and in 1967 it was mandated by the US Fed Govt [Lyndon Johnson was President] as the standard time within the established time zones and clocks would be advanced one hour beginning at 2:00 a.m. on the last Sunday in April and turned back one hour at 2:00 a.m. on the last Sunday in October. More here
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Many people don't like Daylight Savings Time
Daylight-saving time savings energy is a myth
11-2-17, Market Watch -- Daylight-saving time doesn't decrease total energy use. However, it does smooth out peaks and valleys in energy demand throughout the day, as people at home use more electricity in the morning and less during the afternoon. Though people still use more electricity, shifting the timing reduces average costs to deliver energy because not everyone demands it during typical peak usage periods.