K26, 08:00.
I have learnt my lesson with PBP and starting at 18:15, I have been up for almost a day before I start, so I get very tired during the first night, but still keep going for 30 hours and about 315 miles before a sleep.
So, I am planning on getting up a couple of hours before the start at 06:00 when I usually get up, and then, the 30 hour limit should be on the Monday afternoon and have a siesta in a field in the Sun for a bit of piece and quiet rather than a checkpoint.