Originally Posted by
DaveReidUK
As for bringing forward the STD by 15 minutes, how long before the previous departure time did the airline originally ask you to be at the gate?
Commonly such a ludicrous time in advance that people have long given up believing such information, and just use their common sense.
One carrier gave me a latest check in time at London City for an early morning departure which was actually before the terminal building is unlocked by security.
Up at Stansted it is normal for the FIDS to show "Boarding" even before the inbound aircraft has come on stand.
US domestic carriers do have a habit of moving times forward and back by various minutes every few months, which I presume comes from optimisation adjustments of gates and slots. Given that the most prominent display on their FIDS is to sort by departure time, it makes checking against tickets more difficult.