It depends on which pokemon.
Now sometimes it is at least a day.
If u have action replay there is a code for fast
egg hatch.hope it helped....:)
It needs to be level 16 to evolve.
It'll evolve at level 40. It may take awhile.
2 years
Pretty easy. They don't.
It evolves by trade,not level. So, it's your choice when you to evolve it.
A few minutes.
All you need to do it is evolve it with a Fire Stone. No leveling up is required, but recommended.
A couple battles.
Approximately 2 hours
just give the right stone to it and it will evolve straight away e.g. eevee+firestone =flareon
A chao evolves in 2 ways. To get a dark chao it will evolve when you have made it have a dark wing. To get a hero chao then it will evolve when you have made two balls on his head connect.
You need to Link trade the Electabuzz, and hopefully that same person will trade it back to you.