Turning eggs

Hi

Having set 12 eggs in the incy, how often do I turn them ?. I have read so much conflicting advice, so thought I would ask the experts direct. I know you do it an odd number of times. Also most importantly is a turn from where you have marked the egg to the complete opposite side, if that makes sense. In other words not a quarter turn.

if you have not got one of the tipping type incubators i suggest you do the newbie easy way to egg turning . mark the eggs with  pencil on one side , then each morning and evening turn them over to the opposite , so start with the mark facing up in the morn then roll them over to have the mark face down . i actually turn the eggs over on end as well . "werks for me "