What is the longest anime episode of all time?

I've noticed that most anime have 20-minute episodes, so I've decided to start finding shows that go higher than that. Obviously, a lot of shows have double-feature episodes (such as RIN: Daughters of Mnemosyne), but here's the top 5 I've been able to find.

5. Made in Abyss: "The Challengers", "Gold" [reportedly around 60 minutes each]
6. Hellsing: Ultimate: "Hellsing X" [67 minutes]
7. Pluto: "Episode #1.1" [71 minutes]
8. Oshi no Ko: "Mother and Children" [82 minutes]
9. Key: The Metal Idol: "System" [97 minutes]

Please do not recommend episodes that are below an hour in runtime.