About CS50
Total watch time
1h 48m
at 1× speed · exactly 1 hour, 47 minutes, 35 seconds at 1×
| 1× | 1h 47m 35s |
|---|---|
| 1.25× | 1h 26m 4s |
| 1.5× | 1h 11m 43s |
| 1.75× | 1h 1m 29s |
| 2× | 53m 48s |
Plan to finish
About 2 days at an hour a day
Pick a daily pace and the days you'll watch. Ticked videos are skipped.
At one hour a day, every day, this playlist takes about 2 days. Turn on JavaScript to plan around your week.
Videos (3)
1h 48m in total · tick what you've watched
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| Watched | ||||
|---|---|---|---|---|
| 1 |
 CS50 2021 in HDR - Lecture 0 - Scratch
|
1:45:16 | 2022-01-01 | |
| 2 |
 POV - CS50 Reels #Shorts
|
0:27 | 2022-01-04 | |
| 3 |
 This is CS50
|
1:52 | 2018-03-24 |
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[](https://playlistduration.com/playlist/PLhQjrBD2T383fY1U-lgxye2GeZg80zds5)<a href="https://playlistduration.com/playlist/PLhQjrBD2T383fY1U-lgxye2GeZg80zds5"><img src="https://playlistduration.com/badge/playlist/PLhQjrBD2T383fY1U-lgxye2GeZg80zds5.svg" alt="Watch time: 1h 48m · 3 videos" width="196" height="20"></a>Add ?speed=1.5 to the image URL for the time at that speed, ?label=Course to change the left text, or ?style=flat-square for square corners.
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Data from the YouTube Data API as of 2026-09-22 (cached). Private or deleted videos are excluded from totals.