i think it is 6,7,or 8 tama years wich is 6,7, or 8 days. but dont pause it!!!!! when you pause your tama, its like stunting its growth. so if you dont pause it at all till its 6 7 or 8 yrs old, youl get a job.
You have to wait 24 hours after your Tamagotchi changes into an adult before you get the mail for the elementary school graduation and the job listings.