Originally Posted by
AlwaysFlyStar
The 24 hour rule saved my butt a few times when I put in the date regular style (i.e. non US style) and had tickets for the wrong months.
On AA, when you book a flight, you can choose your dates from a calendar (grid), that way entering dates in US form (mo/date/yr) or non-US (date/mo/year) would not be an issue--I seem to remember DL, NW had the same system.