changing clocks: What's Daylight Saving Time? - 03/11/11 05:38 PM
 
According to      
Daylight Saving Time (or summertime as it is called in many countries) is a way of getting more light out of the day by advancing clocks by one hour during the summer.
During Daylight Saving Time, the sun appears to rise one hour later in the morning, when people are usually asleep anyway, and sets one hour later in the evening, seeming to stretch the day longer.
About Daylight Saving Time
Many locations in the world set their clocks from 2am (or 02:00) to 3am (or 03:00) in their local times when they begin daylight saving time. … (5 comments)