Other North & South America Frequent Flyer Programs - LAN Website Wrong? BRC-AEP

I know the flight is two (2) hours in duration - after all, it is over 1,200 kilometers. However, LAN shows this flight as one hour in duration.

So, if LA 4347 leaves departs at 1505 when does it really arrive? In EF and on the LAN.com website it says the arrival is at 1708.

AR 2679 departs at 1305 and arrives at 1608.

So, what is the correct arrival time for the LAN flight. Oh, all of their flights show the flight time as one hour.

1 hour time change during the summer.

Does this mean the LAN flight actually arrives at 1808 - 2 hour flight + 1 hour time change?

There have been some screwy times in the schedules over the past couple years. Argentina has been tinkering with a summer time, sometimes announced with not much notice (although I think it is a stable thing now) and some provinces do not participate. It is very possible that the LA schedule is incorrect due to this.