Got up at 4:30 a.m., so I could be at work by 6:00 a.m., so I could start observing at 7:00 a.m.
At 6:30 a.m. got a call that there were problems with the elevation motors on the telescope. Got to observe until 9:30 a.m. at which time the maintenance teams took over and are fixing the elevation motors.
Still don't know if I will be able to get back on the telescope before my time's up at 11 a.m. [Update: I lost all the time from 9:30 to 11 a.m.]