Daylight Savings Time or Daylight Saving Time?
Daylight Saving Time (DST) is often wrongly referred to as “Daylight Savings,” with an “s” at the end. Other common variations are “Summer Time” and “Daylight-Saving Time.”
Setting our clocks one hour forward in the spring is often referred to as “Daylight Savings Time” even though “Daylight Saving Time” is the correct spelling.
“Daylight Savings Time”
The term “Daylight Savings Time” is very commonly used, especially in Australia, Canada, and the United States. It's likely that the incorrect term “savings” entered the popular vocabulary because it's so often used in everyday contexts, like “savings account.”
At the beginning of the DST period in the spring, clocks are moved forward, usually by one hour. When DST ends in fall (autumn), clocks are turned back again. DST does not add daylight but it gives more usable hours of daylight. In that sense, DST “saves” daylight, especially during early spring. Standard time refers to time without DST.
Another term that is commonly used to refer to DST, particularly in places such as the United Kingdom, is “Summer Time.”British Summer Time (BST) is the period in which DST is used in the United Kingdom. The term “winter time” is used for standard time. The term “summer time” is used in various bills about DST in the United Kingdom. This includes the Summer Time Act of 1916, the Summer Time Act of 1925, and the Summer Time Act of 1972.
The term "Sommerzeit" (summer time) is also used in Germany to describe DST. The term first emerged as early as 1916 when the German Federal Council decreed that “Sommerzeit” would be used in Germany as a wartime measure, starting on the last Sunday of April.