I commute to downtown LA from HB 3 or 4 days a week. 40 miles door to door. Usually take 60 - 75 minutes. Best ever was 38 minutes (I'm sorry baby jesus, the devil made me do it) and worst ever was 2.25 hours (friday pre holiday weekend). Today traffic was horrible and it took me 75 minutes.
I have a buddy in C'bad, too. Great town. Seems like it's getting a bit more "country club" though. They bulldozed the drag strip a couple years ago!