I usually try to get Ashleigh to take 20 mins from one side and then just encourage the other side which she may take 5 mins on.
During the day feeding can take a lot longer for me cause I find she gets quite distracted. We went through a stage where she would prefer to look around after only 10 mins of being on the boob and then will want the rest an hour later so later so as I didn't want her on my boob constantly I pretty much have to push her to have a proper feed. I find that it has helped cut down the amount of feeds and she also settled a bit more.