I feel so noob. I only knew recently that there is this system in some countries. I din know they do alter time as they desire.lol.
Daylight saving time (DST; also, summer time in British English) is the convention of advancing clocks so that afternoons have more daylight and mornings have less. Typically clocks are adjusted forward one hour near the start of spring and are adjusted backward in autumn. Modern DST was first proposed in 1907 by the English builder William Willett. Many countries have used it since then; details vary by location and change occasionally.