This sound comes from Persona 3, the Atlus role-playing game first released in 2006. The Dark Hour is a major part of that game's identity, and its clock audio became memorable because it signals an unnatural midnight state and a shift in mood. Online, fans and editors reuse the clip in game videos, lore edits and stream scenes when they want an immediate feeling of suspense. Its appeal lasts because the sound is simple, recognizable to Persona fans and strong enough to set a tone in just a few seconds.