Saturday has usually much longer queues and thus waiting times.

I myself queued on June 15 at 3:30 pm for 12 minutes at B (without priorirty, which was not open).

A colleague flew on June 11 (Saturday around 2 pm and queued for up to 2 hours). You can walk between terminals A/B/C airside, so take secruity with the shorter lines. B is usually the fastest from my experience, C comes with a lot of charter flights last.