When do I Start turning eggs?

[1234duck]

I put eggs in Incubator, 1:30 this morning. Instructions from Incubator say, DO NOT Open Incubator the 1st day after the eggs are set. *When should I Start turning the eggs? (This will be by hand) Thanks, Julie

 

[OrpingtonDude]

What i always did was i put an X on one side and an O on the other and i turned them once in the morning and once at night and started turning around the 3rd or 4th day.