Definition
Session time is the total time a viewer spends on YouTube after watching your video. Videos that lead to longer sessions are favored by the algorithm because they keep users on the platform.
Watch Time vs Session Time
- Watch Time: Time spent watching YOUR videos
- Session Time: Time spent on YouTube AFTER watching (including other videos)
Why Session Time Matters
YouTube's business model depends on keeping viewers on the platform (ad revenue). If your video leads viewers to watch more videos—yours or anyone's—the algorithm rewards you.
Increasing Session Time
- End screens: Promote next video to watch
- Cards: Link to related content mid-video
- Playlists: Auto-play sequences
- Series content: Multiple related videos
- Engaging content: Viewers in "watching mode"
What Hurts Session Time
- Content that makes viewers leave YouTube
- Frustrating or disappointing videos
- Clickbait that doesn't deliver
- Sending traffic off-platform immediately
The ideal video satisfies viewers AND makes them want to watch more.