We are booked on a CX flight that leaves LAX-HKG-SIN at 1:35am.

Now I'm looking at booking separate tix from AUS-LAX on AA leaving 12:30pm and arriving at LAX at 1:30pm the day before. (12 hr layover)

Are we within the time limits of being able to check our luggage in at AUS all the way to our final destination of SIN? Or will we have to claim baggage at LAX and check it again there?