The summer time is referred to as Daylight Saving Time or DST.
The practice of setting clocks forward one hour in the spring and backward one hour in the fall, is a part of a program known in the U.S. as daylight time or daylight saving time (DST).
A number of countries around the world such as the U.S., Canada, U.K., Chile and Russia observe some form of DST.
In 1907, British builder William Willett began a crusade to adopt a DST schedule.
This means that almost two-thirds of the year are in Daylight Saving Time or DST.
