For me, it was 15 minutes of game time.
I couldn’t get matched, thought I cancelled the queue, but turns out… nope! My ally was surprised that I came back (I told him what was up). She played Zagara P1, I was Swann. I slapped some gas drones, but declined to take my exp. back since the game was past half over anyways.
Otherwise, I had one case where internet was terrible. Didn’t get in until 2.5 minutes of in-game time.