How long does it take for a Pokemon to lay an egg?

If you talk to the daycare man, she should talk about how the Pokemon are getting on. The better they are getting on, the faster they will lay an egg. If they don't like each other, i suggest you try some other Pokemon. I the Pokemon have the same nature they will get along. If you want a Pokemon born from the male Pokemon, mate that Pokemon with a ditto of the same nature. Thx for reading!

~Ninji99