Originally Posted by tennisguru

Going into a normal X day you are on LC until 2359. Scheduling can call you at any point during that last day to put you into rest early. Generally they have consistently been assigning rest starting at 1800. If you are going into a vacation day or golden X day you are already assumed to be aware of the company’s contractual obligation to release you from LC into rest at 0600 so that will happen automatically with no call to you required. This whole paragraph only applies to when your last day of LC has no rotation or SC assignment - just LC for the whole day.

Scheduling can assign you SC on your last day of reserve. Ifyou are on SC going into a regular X day they can keep you on SC up until 2359, but as always any assignment must release by 2359 so you are not really usable to them that late. You are atomically released from any SC at noon on your last day before a golden X day or reserve day.