About a month and a half without ejaculating, then my body took care of that. Sadly it felt more like an orgasm than I had wanted. Was another half of a month before I had a deliberate orgasm though. Usually my intervals are more like two weeks to a month with the cage, or daily to weekly without.
As for uninterrupted wear, usually no more than a week between hygiene breaks, often more, and longer breaks are not uncommon either.