If you are asking "how long does it take for the sperm to fertilize the egg once it penetrates the egg wall?", it is instantaneous. That's what "fertilized" means. If you are asking "how long does it take the sperm to fertilize the egg once it enters the female body?", there is no exact answer. it could take from a few minutes to a few days.
Unless you can also fertilize the egg (you won't), it will take... forever (as in never).
It varies but it can take several hours.
it takes up to 1 week for sperm to fertilize an egg depending on how fast the sperm swims
Conception is the moment of fertilization.
Conception is the act of an egg and sperm joining. Hence when conception occurs that means the egg has been fertilized.
It usually takes between 3-5 days for Sperm to reach & fertilize the egg.
There is no egg to fertilize before the ovulation.