Daylight saving time (DST) or summer time =
Practice of advancing clocks during the lighter months so that evenings have more daylight and mornings have less.
Typically clocks are adjusterd forward one hour near the start of spring an are adjusted backward in the autumn.
The modern idea of daylight saving was first proposed in 1895 by George Vernon Hudson. He had a shift-work job that fave him leisure time to collect insects, and led hi mto value after-hours daylight.
It was first implemented by Germany and Austria-Hungary starting on 30 April 1916. Many countries have used it at various times since then, most consistently since the energy crises of the 1970’s.
By synchronously resetting all clocks in a region tob e one hour ahead of Standard Time, individuals who follow such a year-round schedule will wake an hour earlier than they woulr dhave otherwise. They will begin and complete daily work routines an hour earlier, and they will have an extra hour of daylight after their workday activities. However they will have one less hour o daylight at the start of each day, making the policy less practical during winter.