Apple get your sh*t together & on time

I really don't understand why Apple gives a real flying fuck about the time zone changes South of the Rio Grande.
Of the four different times displayed on the Widgets, the only correct is the one for Miami (and the one on Buenos Aires is working because I have disabled the time sync via ntpd), all the others are showing incorrect times.

I guess we are not that important on the whole picture, but nevertheless, how complicated can be to release updates for this?