Try -1 Caesar: thmyl → sglxk → no. Try +1: thmyl → uinzm → no.

So possibly: — but that seems odd.

Given the time, I’ll guess it’s meant to be a whimsical, coded way of saying: But that doesn’t make much sense.

Could you provide any hint — like a key or what the context is (song lyrics, puzzle, personal message)? That would help me decode it accurately.