Storing UTC is not a silver bullet (2019)
I think summary here is that if you are storing an exact moment in time then UTC does the job. If however you are storing a future date and time in a certain location, due to the uncertainty about future daylight saving time changes you have to save it with time zone information in order to adjust for future changes to that system.I suppose it’s the difference between exact time and social/political time (there is probably a better term for that).