You're rested at 0900 Wednesday and called for 1200 to deadhead, separate and apart, Z to A released at 1500, rested at 0100 Thursday. Called at A for 0600 to run a train A to Z released at 1400. Upon arrival and release at Z, you have answered the phone and went to work on Monday, Tuesday, Wednesday, and Thursday. How many consecutive days have you worked at this point? 1 day. Remember that deadhead? It's not considered performing service so does not count. If you have 24 hours off between tours of duty of covered service you reset, the consecutive days count starts over. The time from 2300 Tuesday to 0600 Thursday reset the count.