DST is not about energy use. If it actually saves energy is debated and depends a lot on the local climate and air conditioning usage etc. What it is about is

DST is not about energy use. If it actually saves energy is debated and depends a lot on the local climate and air conditioning usage etc. What it is about is moving an extra hour of daylight from say 5:30am-6:30am (when it is only of use to farmers and a few other early risers) to say 7pm-8pm when 95% of the population is still awake.