when do tamagotchis evolve? i need to know the cycle

[Aidan]

i dont know when my tamagotchi changes age how long does each age last?

plz help

 

[BanditHeelerTama-Fan]

For the original Tamagotchis Gen 1/2.
The Tamagotchi starts at the baby stage
Then after about 1 hour the Tamagotchi will turn into the toddler/child stage.
After around 24 hours (I think) it will turn into a teenager (The teen stage last 24 to 72 hours depending on release)
After 24 to 72 hours it will turn into an adult

(Hopefully this helps)
(Oh and welcome to tama talk!)