what is dst in time settings. ( day light saving time) what is the meaning and use of this.?

Question

in some computers and mobile phones there is dst with difference of some time.

Answer 1

DST is nothing but a complete waste of time and effort. Some governments decided to artificially adjust the time to "save" energy. But if a person just looks at DST logically anyone should be able to see the stupidity of it all. Let's say there's 12 hours of daylight and 12 hrs of darkness. Adjusting the time will NOT change the physical number of hours of daylight or darkness. If it gets "light" at 6AM and gets "dark" at 6PM, and you move the clocks ahead by one hour for DST, it will get "light" at 7AM and get "dark" at 7PM. Whatever energy you save by not using your electric lights until 7PM is negated by having to use them an hour longer in the morning. DUH!

And if changing the clocks by one hour every few months is good, why not change them by 2 or 3 hours? Wouldn't that be even better? DOUBLE DUH!!!

plrr

Answer 2

Daylight saving time (DST), also known as summer time, is a conventional local time adopted by many countries of the world on a seasonal basis. Most commonly DST is obtained by adjusting the official local time forward, by one hour, for the spring, summer, and early autumn periods.

DST is mostly used in temperate regions, due to the considerable variation in the amount of daylight versus darkness across the seasons in those regions.

Governments often promote it as an energy conservation measure, on the grounds that it allows more effective use of natural sunlight resource in summer time. Since there is less darkness in the "waking day", there is less use of electric lights. Some opponents reject this argument (see below, Criticism).

Europeans commonly refer to the system as "summer time": Irish Summer Time, British Summer Time, and European Summer Time. This is reflected in the time zones' names as well, e.g., Central European Time (CET) becomes Central European Summer Time (CEST).

The word "summer" in this context includes most of spring after the spring equinox and a large part of autumn. Likewise, the word "winter" here includes part of autumn and a few weeks in spring. This varies by time zone, of course, and can change over time as well.

Answer 3

it's used to save energy basically...being earlier by an hour while the sun up avoids opening the lights and stuff like that...becausse in sumer days are longer right?