I’ve grown accustom to not looking at the time while meditating. Occasionally the alarm I use either has the sound set to mute or something malfunctions. During a long, unintentional 90 minute meditation today I was faced again with the fact that that the longer one goes, the more intense and difficult it becomes to stay focused. Balance and calm eventually gives way to tension, intense irritation, and impulses to stop meditating in favor of whatever compelling thoughts take over.
What I found was that getting through such storms of emotions became easier by changing focus on the body and its sensations to focusing on the breath instead. Goenkaji mentions this approach to dealing with such distractions in his discourses several times.
Once things calmed down I went back to the body scans. Much like walking over hot coals, such achievements provide a sense of power and accomplishment in mental discipline that carry into other areas of life. Unlike walking on hot coals, there’s very little chance of getting hurt!