How Much Time Has Passed on Game of Thrones? A Reasonable Timeline, Explained

Joffrey is 19 when he dies at his wedding to Margaery in the season's second episode, which means it's been nearly four years since the characters' journeys began. Meanwhile, in Essos, Daenerys's dragons officially enter their unruly teenage years, and at this stage their size becomes an excellent marker for the passage of time. The reunion between Sam and Gilly in "The Watchers on The Wall" hints that season four is the first season not to cover an entire year. Baby Sam appears to be no more than 4 or 5 months old during the siege of Castle Black. If we assume the baby is aging at a normal rate, then around half a year passes over the course of season four.