Frankly, I don't recall.
Off the top of my head (thinking out loud) - engine rotates clockwise (looking at it from the front).
"-" means it's overly advanced (opens too early), so you want to time the crank earlier. Meaning, counterclockwise, looking from the front.

But better get someone else to confirm.
Or move it very slightly either direction, clear DTCs (!), and re-check 93, noting which direction the values shifted.
Clearing DTCs also resets adaptations. If you don't, it might stay where it was, despite being moved. Verify by looking at 91 and 92.