Originally Posted by
tennisguru
I guess because technically nothing says WHEN you have to ascertain if an assignment has been placed on your schedule. In theory you could wait until midnight or later once you start LC to view your schedule (or the daily trip coverage, or the daily SC assignment log, or text your buddy to view your schedule, etc). While in practice most people check fairly soon after the 12 hour prior point, since that is voluntary at that time it isn’t considered to have broken your rest.
I always thought it was a good idea to check at 1201 (or 1 min past the time if on a PR) because that's the cutoff and I wanted to know as far out as possible and also to keep scheduling from adding something later and trying to claim it was there at 1200. But considering you can look at Daily Trip Coverage and Rotation History that's not really necessary. To me having more notice is better than less.