Direct answer
The 66 days are confirmed in the story premise, but a continuously ticking player deadline is not. Players should not plan around a Persona-style calendar unless S-GAME demonstrates one.
What is not confirmed
This answer is intentionally limited to what the cited primary source establishes. It does not rely on fan-maintained lists, retailer placeholders, edited trailer cuts, leaks, or assumptions imported from other action RPGs.
How this answer will be updated
The page will be checked after the dedicated summer State of Play, material store-page changes, and the retail launch. New details will be added only when they answer this exact question; separate search intents will keep their own URLs to avoid overlap.
Primary source
Official PlayStation page, last checked July 31, 2026. The linked gameplay hub provides the surrounding guide context.