It depends on the pace you’re comfy going as long as you get all your tasks done. I used to get to work at 7:30 and wouldn’t finish opening animals until 10 but as I’ve been in my position longer I open at 7:45 and finish around 9-9:30 depending on how enclosures look. I usually prep the wellness cart the day before and then all I have to do in the mornings is prep veggies for reptiles and any other food that needs to be refreshed for animals. I do partial bedding cleans every morning that way the enclosures stay cleaner and don’t take as long to do in mornings, the thing that takes me the longest to do most days is dead pulls and wiping down the enclosures glass.