I was born at 1:23PM on a Monday, and there’s nothing remarkable about that — by US standards, anyway. Births in the country are daytime affairs, reports the CDC in a new study of birth certificate data from 2013. If a child is born during the weekday, chances are, they were born during the morning and midday hours. And the reason for that is far from biological. The fact is that more babies are born during the day because that’s when medical professionals schedule cesareans — a delivery method that makes up one-third of US births.