Figured I’d post since I haven’t seen it mentioned yet.
At 7:00 p.m., all the existing spawns (Klink, Bronzor, Machop, and A!Diglett) disappeared and were then replaced by a bunch of Clefaiy.
The Clefairy remained until 7:05 p.m. where they all disappeared at once, and the previous spawns took their place.
by slippin_through_life