when placing egg on incubator does it count as day 1 ?

[TOR]

Takes a day for the egg to get to temperature. Some incubators may vary due to temperature. Warmer cooler spots etc

 

[Ridgerunner]

I’m super confused as to why this is.

While hatching chicks with incubators is not new (Ancient Egyptians and Chinese developed their own methods before the time the pyramids were being built) keeping backyard chickens has become trendy recently. Many people are jumping on that trend to make money. While they can find plans or methods on how to build an incubator that works, that does not mean they understand incubation.

When someone reads that you go into lockdown on Day 18, it is intuitive to say "one" when the eggs go in the incubator. They do not understand that "Day 18" means after 18 days of incubation, thus you say "zero" the day the eggs go in. There are a lot of people on this forum that do the same thing, whether the eggs go under a broody hen or in an incubator that does not count down. You see a lot of posts on here about the eggs hatching late. Sometimes eggs do hatch late but sometimes it is just people miscounting this way.

I consider it human nature. Not everybody is going to worry about details and dig into how things work. They are just going to make assumptions and go.