Stranger Things season 4 is the first English language series to hit over a billion hours of viewing time.
According to Netflix and Hollywood Reporter, with Stranger Things season 4's final two episodes out, the latest season of The Duffer Brothers' popular horror series has surpassed the billion-hour viewing mark.
Why is the show's viewership recorded in hours? That's because it's Netflix's preferred viewership metric.
Stranger Things' newest season recorded 1.15 billion hours of viewing in its first 28 days. The only show on Netflix with a bigger viewing time is Squid Game which recorded 1.65 billion hours of viewing time in the same period. As Squid Game is a South Korean language production, the distinction of being the first English language series to hit a similar milestone goes to Stranger Things season 4.
Viewing hours in the first 28 days isn't a typical metric shows track versus more conventional metrics like viewership. But this is Netflix's preferred metric and the one it regularly shares with the public. So while it's not an exact viewership estimate, it does showcase that Stranger Things is still a hugely popular series and one that is devoured by subscribers when a new season premieres.
This is especially impressive given that the final two episodes of Stranger Things season 4 were released only days ago. Though, we should note that each episode is an hour-plus in length, making Squid Game's achievements stand out even more given their episodes were half the length at times.
Still, with Stranger Things still going strong it's no wonder Netflix and the Duffer Brothers are exploring spinoffs. For more, check out IGN's Stranger Things season 4 review for our take on the latest trip to the Upside Down.
Matt T.M. Kim is IGN's News Editor. You can reach him @lawoftd.