9am and on. Some days flow some days stumble and some seem to wait indefinitely on a traffic light that never turns green. Stalled in process, but at least with sidesteps left to consider. (Also: Documentation woes. Learning curves. And the thin line between accidentially doing things wrong and explicitely trying to take experimental turns. Sometimes, writing down things not to do seems a good idea as well.)
Close to 4pm. Cleaning up. Book-keeping several different ways. Non-functional requirements meet non-technical effort. Or: The experience of sinking amazing amounts of time in unplanned, unchartered side-arms of complex processes. Here be dragons, this is where things start becoming unpredictable.