Sav doesn't count days, after our second incubation she's on break. Since I've been hacking her account we've finally got a double namer! The confusion should taper as the signatures start to pop up. It won't let me go back and edit all the old old ones.
As for day counting... There is a great debate amongst the world about how many days it takes a chicken to hatch. Have you ever seen a thread where a new person claims to be on day 21, only to have a veteran chicken owner explain to them about a "day zero" or something about how if you hatch your eggs before noon you count that day and if you wait til one its the next day?
I use an app called hatchabatch to teack my days, and it doesn't have a zero day. So i drop my eggs at nine pm (midnight eastern standard) and that starts day one (zero). So when anyone has a hatching question, i usually drop a picture of my day (some peoples day less) to help identify where there chick should be (which is only a guideline as chicks grow at slightly different rates).
Ryn.