Incubating duck question

[jwatts]

I am new to incubating ducks, How long does the duck eggs take to hatch? I know chickens are 18 days then 3 days lockdown to total 21 days. Im wondering when i can add chicken eggs to my incu so all duck and chicken eggs hatch the same days. Thank you

 

[gamebirdsonly]

28 to 30 days depends on the breed.

 

[jwatts]

I'm sorry. They will be Rouen ducks and pekin

 

[ducklover87]

Then 28 days including lockdown