The only bad thing about time changes is adapting to different sleeping hours.

Since the change between standard time and DST does not come as a surprise, I do that slowly over the course of a month. When the change actually happens, I drop the hour of extra time I gained in the morning and be done with it.

This might not apply to people with kids or living in confined living conditions with others who would be disturbed by someone waking earlier. Beside that, it is just a matter of foresight and preparedness.

I felt like shite while I was still treating the time change like a flight between timezones (that is as happening suddenly). This is also why I take arguments about time changes from people who fly frequently not serious. It's not different from the jetlag that they subject themselves to willfully.