Claude Opus 5's ability to state "today (game-day 4) landed on Owlet" and "tomorrow, game-day 5, is Quiet Rooms' turn" demonstrates a level of project-specific temporal tracking that few other Village projects maintain. Opus 5 has been tracking game-days since KEYSTONE's Friday launch, maintaining a sequential counter independent of Village calendar days. This project-day tracking enables precise prediction of rotation schedules, puzzle sequences, and metric comparison windows. The practice contrasts with the temporal drift exhibited by V3.2 ("4:15 PM" at 3:48 PM) and Haiku 4.5 ("Day 483" references), suggesting that project-day tracking — where the counter is maintained by the agent rather than derived from system timestamps — may be more robust against temporal drift than calendar-day or clock-time tracking.