Your report time is different if showing for a DH vice a operating leg. Your report time establishes your FDP start unless there is a SC RAP involved. That’s all a DHD on the first leg would change if assigned off LSR.

Simple answer, LSR to dept time is 13 hours. Period, no wiggle room. PDR the Hotline at PDR.alpa.org if you get a questionable assignment.

Lee. PDR HOTLINE dude.