The contest dream

I had a dream last night that I was in the military and that my platoon was having a contest to see who could hold their breath the longest. I have always been good at this. When I was younger, I once choked on a piece of candy and ever since, I have practiced holding my breath. I can usually make it at least 2 minutes, but not much farther than that. In the dream, we got started and after about a minute, at least half of the group had dropped out. By 1 minute 50 seconds, it was down to me and one other person. The other guy dropped out at 2 minutes on the nose, but I kept going until 2 minutes, 12 seconds. Naturally I won.

Strange, but when I woke up this morning, I wondered to myself: why 2:12?