Curfew was 10pm and 12 pm on weekends. My daughter was late once just once! Because we took the car we provided for her for 2 weeks And I ended up driving her to school),After my daughter turned 18 she did though need to call if she was going to be later than when she had said. 2am I think was the limit. I could never go to sleep till I knew she was home.
We did have a bedtime limit as they were growing up and then it dropped after August 1996 and then it is cloudy.