How long does it take for a duck egg to hatch?

[PekinBantam]

I've got a mutt chicken hen sitting on 9 duck eggs and i was wondering how long it takes for a duck egg to hatch...
Thanks in advance...

 

[Pyxis]

Most duck eggs take 28 days to hatch, one week longer than chicken eggs. I have two due to hatch Saturday. Good luck with yours!

 

[DuckLady]

To add to the above, muscovies will take 35 days and cross breeds of muscovy and other domestic ducks will be about 31 to 33 days.

 

[PekinBantam]

Thanks for the replies, Violette (the hen sitting on the duck eggs) still has a long way to go... It's her first time sitting on eggs so i hope the species difference of the mother and eggs won't phase her too much...