A night was pretty clear, so I decided first to image IC443 in Gemini, as it sets earlier and earlier to the west and soon would not be available till next winter. Than I slewed my telescope to a meticulously calculated spot to have the object just flying withing the FOV of the camera. I set 30 x 1 min exposures. On examining first few, a disappointment - no object visible. What happened? Is it much dimmer than predicted? I have checked again and again the star field against TheSky 5.0. Than, literally on the last image, a small comma appeared at the edge of the frame. Bright and conspicuous. It was delayed by just one hour. But wait ... week ago we switched to a DST :-) Anyway, the next 1 hour was busy imaging with 1 min integrations.