Originally Posted by
Strom
because we're within 96 hours
http://united.com/web/en-US/content/...e/default.aspx
On certain flights, automatic processing of upgrades, including Complimentary Premier Upgrades, may begin as early as
They do not guarantee it will run AT 96 hours. It MIGHT run as soon as 96 hours, but it might run later.
Note that the table header also includes the "as early as" language.