Originally Posted by
j2simpso
.... If you're looking to accrue Premier status United for 2019, United will only look at flights credited to your account that were scheduled to depart between January 1 2018 to December 31, 2018 at 11:59 PM Central (Chicago) time. ...
Not quite correct -- flight crediting is based on the scheduled
local-time departure of the flight segment, not Chicago time.
Year end / split year elite flight credit [Consolidated]