My first, from waters breaking was 18 1/2 hours.
My second from first contraction was 30 hours.
My third was 5 hours from first contraction.

Every labour is different though. My waters broke first with DD1. They had to break them right at the end with DD2 & they broke about half way through with DS.

With DD1 things started & progressed really slowly through out the day.
With DD2 I had about 20 hours of 'pre' labour contractions. Irregular, but still painful! Then 10 hours of full on Labour.
DS was 5 hours hard & fast! DH only just made it. We thought we would have heaps of time for him to make the 2 hour trip! Since neither of my other labours were particularly fast.