... it is very rare in my time to celebrate one's birthday. Unless you are a noble of some form - which Ambrose certainly is - you are expected to celebrate your saint's day instead. Nobility and royalty celebrate their birthdays and their saint's days, as a sort of display of wealth - and depending on how rich one's family, the longer the birthday celebrations can last, sometimes up to a week after their birthday.

Given that we can infinitely create food, here, we could easily celebrate Ambrose's birthday for a week, if you so desired.