Originally Posted by MarcoBJ
If you retrieve your reservation that is being held,
it will say "must ticket by Thur, Jan 20, 2005 CST."
The day of the week in there helps a lot.
The word "by" remains ambiguous. It could mean "before" or "on or before."
They should say "must ticket by 11:59pm, Thur, Jan 20, 2005, CST." That would remove all ambiguity.