How late is Journey to the End of the Night projected to run?
It runs as long as you can. Some runners get there in less than three hours, many take 4-6. There have historically been more people at the start of the game than at the end (and the following after-party). Bowing out when you need would be fine. Skipping to the events at the end is acceptable, though you’ll miss a lot, and be ineligible for trophies.