As my body struggles each spring to cope with the Daylight Savings Time (DST), I wonder if it is beneficial to humans and what effect does it have, if any on loss of productivity due to sleep deprivation, on health, and potential accidents. Who decided first that it was a good idea to turn clocks forward one hour in spring and wind them back in the fall? Did it save significant amounts of energy and thus money?
At 2 a.m. on the second Sunday in March until 2 a.m. on the first Sunday in November, all states except Arizona, Hawaii, and territories, American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the Virgin Islands observe DST. Seventy other nations around the world also follow DST.