Facebook will celebrate its 10th birthday next week. Created in a dorm room by Mark Zuckerberg and a few friends TheFacebook.com came to life on Feb. 4, 2004. In its decade of existence, the social network has attracted 1.1 billion users, and all their pokes, wall posts, baby photos and engagement announcements add up to a whole lot of time. Use TIME’s calculator to see just how many days of your life have been lost to this ten-year-old.
