First of all, it's daylight saving (singular, not plural) time. Many of you were taught that good old Ben Franklin came up with the idea, but few know that he did it as a JOKE!
There's no energy savings, and it's just one more scam. If you want more light at the end of the day, rather than at the beginning, then just shift the time zones permanently. Of course, the time zones are mostly based on the notion of noon being the time when the sun is highest in the sky.
It's not nice to fool Mother Nature.
Read all about it in this Health News Digest article.