Just now, 1:12 if I just stop breathing. 1:24 if I stop deliberately at the top. 1:41 if I pack. I did them in that order. They'd go up if I repeated the test though, and they'd go down if I was under stress 😏

Aside from swimming, I do breathing exercises as a habit, daily or even hourly. Helps keep my relaxed, but I guess that in turn helps me hold my breath a bit longer.