From Longman Dictionary of Contemporary Englishroll around (also roll round British English) phrasal verbAGAINif a time, event etc that happens regularly rolls around, it arrives or takes place again By the time Wednesday rolled around, I still hadn’t finished. → roll→ See Verb table
Examples from the Corpus
By the time ... rolled around• Last season they were 3-10 by the time Thanksgiving rolled around, and they never recovered.• By the time Wednesday rolled around, Curtis had apparently forgotten his offer. 