Talk:Steven Universe (character)/@comment-38798450-20190520182755/@comment-24468230-20190602030055

Because the first fusion of Garnet happened "4000 years ago" on Steven's 14th birthday (according to the episodes The Answer and Stephen's Birthday), and "4000 years 'and 8 months' ago" at the time of the wedding of Ruby and Sapphire (according to the episode Reunited).

At least, that's my guess.