Though let’s face it, on the aesthetics of possible pronunciations of #280Tuesday, there is something to be said for “Two-eight-zero Tuesday.” I guess it’s all those trochees.
But “two-eighty Tuesday” really is best, right? The strong alliteration, the sense of a triplet rhythm, with the “Tues” of “Tuesday” held for a pair of beats. It has such a nice music to it. As hashtags go, #280Tuesday really should take off.