This petitions is to remove Daylight Saving time and have a standard time all year around. Most of the world has never used DST, and many countries have ceased to use the DST practice and have moved on.
In the past it was about conserving energy, so people would use less resources when it got dark. In modern times, this is not the case. People will consume energy light or dark out. You may not need to turn your lights on, but you will probably turn your AC unit on.