I have only had the new S4 for 6 days.

I woke up this morning, and the time was 1 hour late.
Checked settings, it was on Eastern time instead of Central.

Manually setting the time zone to Central shows the correct time.
But when I check automatic time zone it switches back to Eastern.
I.m in the Austin, TX area. The Eastern time zone is about 800 miles from here.

I understand the Sprint update to 4.4.2 is due today.
I won't do anything until after it updates.
It may very well be a Sprint issue anyway.

Note: My Samsung Note 10.1 and Tab 3 tablets both show Central time zone.