But if your user does jog from 2:00am to 3:30am, your localized data is going to look wrong in the fall in a timezone where the clock changes from daylight saving and the 2:00am hour repeats itself.
It’s easier to convert historical records from UTC because the official rules don’t change for past dates (there may certainly be data errors in tzdata … what’re gonna do … )
It’s easier to convert historical records from UTC because the official rules don’t change for past dates (there may certainly be data errors in tzdata … what’re gonna do … )