The times i remember...
3am - my waters broke. I remember so vividly because XP had gone out to his mates (despite me begging him not to, i was 11 days overdue!) and wasn't in bed next to me and i thought "where the heck is he at 3am!?!)

2.30pm - my only VE which found me to be not at all in labour - i think the trauma of feeling slightly "pushy" at the peaks and then being told i'd have to deal with that for "at least 12 more hours" by the guessing-with-the-textbook midwife made the time stick in my head.

6.10ish - they tell me to go pee then they'll check and see if i'm in "real" labour yet - i worked this out from the knowledge that if the membranes are gone already they limit VE's to 4-hourly and the fact that my 2nd stage was written as 7mins and they counted it as beginning when i lay down after going to the loo.

6.20pm - DD was born - you will NEVER forget this time! It was written on the card we took to get her birth registered too.

If i counted from when i felt the contractions were out-of-control i would say my labour was about 90 minutes.

Bx