As a kid, I used to time how long I could hold my breath. It was a game, I always tried to beat my longest time... I was a bit of lame kid. I'm pretty sure I used to get close to 2 minutes, but I couldn't do anything close to that now.
That is another thing that gets worse with age!
I used to be able to swim the length of a pool underwater, but no way could I do this now.
I can perhaps hold my breath for less than 30 seconds now as I sometimes practise deep breathing and only can count to 10 on the breath in and hold for 10, which makes 20!