On average, 28 days give or take a few. Some hatch sooner, some later, but after day 35, I would recommend throwing out any that haven't hatched to prevent any possible rotten ones from busting open and stinking up the place.
"It takes 28 days just like any other kind of egg or just like chicken eggs."
Duck eggs are not like chicken eggs. Chicken eggs take approximately 21 days to hatch. Duck eggs, depending on species, incubator temps, and humidity levels, take between 25 and 35 days to hatch. Best bet is to do a specific search on the type of duck egg you are looking to hatch, i.e., search query: "How long for Mallard duck eggs to hatch"? Or "How long for Peking Duck eggs to hatch"? Name the breed of duck in your search. You will get the correct info.
it may take about 28 days to hatch it depends how worm you are keeping it
Mallard duck eggs take 28 days to hatch normally, plus one day for the older eggs in store, say 29 days.
Ducks eggs typically take 28 days to hatch. Indian Runner ducks take 28 and a half days and Muscovy ducks take 35. You should always give or take a couple days.
It may take up to 28 days.It depends on how warm you are keeping it.
26 to 28 days
aprox 24 to 26 days
it will take 999999999999 steps to hatch a egg
It takes one month for a Snowy Owl's egg to hatch.
It Takes 5100 Steps to Hatch Staryu EGG
3weeks
Most eggs take about 34-35 days to hatch. The first egg laid takes about a day longer to hatch than the second egg (33 days). They hatch about 1.5 apart.
15 days
It takes them 5 to 6 days to hatch!!
It takes a egg 34 to 35 days to hatch, if it is taken care of by its parents.
Press A on the egg to make it hatch faster!
21 days
21 days