Using the episode runtimes as listed on IMDB, here’s how long it takes to watch each individual season. I’m now ready to tackle the epic that is Game of Thrones. I’m not a maths person, but I’ve given these runtime calculations a couple of goes in the past. The epic interweaving storylines of warring houses and fantasy creatures kept the entire world on the edge of their seats until it ended in 2019. If you’re unfamiliar with Game of Thrones (first of all, how?) all that you need to know is that it is a sprawling medieval fantasy epic filled with violence, politics and sometimes dragons. How long does it take to watch all of Game of Thrones? Image: HBO We thought we’d make this easier for you by breaking down how long it takes to watch each and every Game of Thrones and House of the Dragon episode.