What are the arguments regarding each time system?

Twice-yearly switching- Changing the clocks twice a year has become widely viewed by the public, lawmakers and sleep experts as not only an inconvenience, but also as a serious health and public safety concern.

Daylight saving time - While the original purpose of daylight saving time was to save energy by extending daylight into the evening, research has cast doubts on that idea. Advocates of daylight saving time also argue that it promotes public safety, with evidence linking the extra daylight in the evenings to a decrease in crime