When the Uniform Time Act of 1966 went into effect it was mandated by U.S. law that the clocks were to spring forward on the last Sunday of April. And fall-back was designated for the last Sunday of October.
During the energy crisis of 1973-1974 year-round DST was implemented. And then the annual time shift was reintroduced.
Bring back the Sun
Over the last few years, experts have warned that less sunlight may impact both mental health and peak productivity.
About 1 in 5 Americans report mild cases of the “winter blues” that coincide with the time change. And about 1 in 20 Americans, may be impacted by the seasonal affective disorder, or SAD.
SAD symptoms result from too much exposure to the dark and the cold. And not enough time in the sun.
Symptoms of SAD include feeling depressed, disinterested, or low energy. Sleeping and eating too much can also be a sign.
In many cases these symptoms are seasonal. They appear after the time change and go away during the sunnier spring or summer days.
