R.W.
My first pregnancy I was in labor from 1:00 AM until 10:59 PM the following night. My second one I went into labor around 5:00 AM and had her at 12:28 PM that day. So you can see the second one was a lot shorter than the first. My Mom had 8 of us two sets of twins. She said the twins labor was quicker than any of them but as you go they do get shorter.