28 for common ducks and up to 35 days for Muscovy ducks.
2-3 weeks
until the egg is ready to hatch. : p
100 to 200 years
Most ducks will stay on the nest and incubate their eggs for 27 days. They will not start incubating until the last egg has been laid, usually laying one egg per day.
Spider eggs laid in spring hatch in one to two weeks, depending on the type of spider. Some spiders lay their eggs in fall and they do not hatch until spring.
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 2 to 3 days for the eggs to hatch.
The wagtail nest is made out of grasses, with spider webs on the inside. Females will lay a up to 3 eggs. Both parents will incubate the eggs until they hatch in approximately 14 days.
until the eggs hatch, then they take the little ones into their mouth and put them in the water.
Monarch eggs taker about 4-5 days to hatch.
Cockatiel`s eggs normally hatch after about 19 days.