When do tamagotchis grow?

Normally, it takes 30 minutes for your tamagotchi to change into a child. It sleeps for 30 minutes and when it wakes up it turns into a child/toddler. You have to wait for 1 day to become a teenager. After you become a teenager, you have to wait 3 days to become a adult. If you choose to have a baby, your generation continues. If not, you will either become an old tamagotchi. Oyatjychi is the boy one i think. Sorry if its not correct.