From pip to zip...

The shortest time is 8-24 hours, and the longest time is 24-48 hours.

I hope this helped, best regards

 

Ahh really. And what if you waited 48 hours?

 

I'd give the shortest time a lot less than eight hours. I'd go as little as 2-3 in some cases.

If you have a pipped chick that has not progressed in 48 hours, an assist is probably necessary.