roll around (also roll round British English) phrasal verb (see also roll)
if 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.

[TahlilGaran] Dictionary of Contemporary English ▲

roll around
to happen or arrive again.
When warm weather rolled around, Jim would start exercising again.

Usage notes: used to describe something that happens regularly, such as a holiday or the seasons

[TahlilGaran] English Idioms Dictionary ▲

roll around
to return at a regular or usual time, to come back
Every time that his birthday rolls around he has a big party.

[TahlilGaran] English Idioms Dictionary ▲

roll around
v., informal To return at a regular or usual time; come back.
When winter rolls around, out come the skis and skates.

[TahlilGaran] English Idioms Dictionary ▲