OK, forgive yet another newbie sched question, but I can't seem to dope this out of the PWA, LOAs/MOUs, or ALPA Scheduling Gide.

On reserve, say I get put on my 30 in 168 rest at 0030 on Monday through 0630 Tuesday. Default condition is that I begin long call again at 0630 Tuesday.

I'm assuming it would be legal to be assigned a SC period at 0630 Tuesday as long as I was informed at or before before my release for rest at 0030 on Monday.

However, if I am not assigned a follow-on activity before starting rest, when is the earliest I can be assigned either a short call start or a rotation report?

My thought is that it would be 1830 Tuesday, since contact to assign me an earlier report would violate my 30hr rest. So Scheduling could call me at 0630 and require me to report 12 hrs later.

Or is the 30 hrs treated essentially as an X day, so I could be assigned a report or SC start as soon as 10hrs, as long as it was on my schedule 9hrs prior to the end of my no-fly period?

In short, if assigned 30-in-168 without a follow-on activity, is it essentially a 40 or 42-hr break?

Thanks in advance.