Pumping at work?

Okay FTM here. Little one is due in about 5 weeks and then I’ll have 6 weeks off. I’m looking to breast feed and then I’ll pump while at work but how do you moms that work crazy hours and are on your feet all day, do it? I go into work at 5:45am (research facility) and clinic with patients varies but it’s normally from 6-11/12 give or take. How do I find the time in between those hours to pump when we are crazy busy!!! Am I able to go longer than 3 hours here and there without pumping? Lots of questions but I always think about things in advance and then get worried 😱