Switching to "day light savings time" year round is being proposed in the U.S. Soon as I saw this, I thought, "No". From what I can tell, a bunch of scientists are saying "no" as well. This from the Washington post:
While no time system will be perfect for everyone, making daylight saving time permanent would lead to a greater number of dark mornings than we have now, said Phyllis Zee, chief of sleep medicine at Northwestern University’s Feinberg School of Medicine.
“With daylight saving time, we are perpetually out of synchronization with our internal clocks and we often achieve less nighttime sleep, both circumstances having negative health impacts,” Neubauer said. “Extra evening light suppresses the melatonin that should be preparing us for falling asleep. The later dawn during daylight saving time deprives our biological clocks of the critical light signal.”