Playlist · CS50
Week 1 2014
Total watch time
32m 9s
at 1× speed · exactly 32 minutes, 9 seconds at 1×
The shape of the course
Each column is one video, to scale
WatchedTo watch
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About 1 day at an hour a day
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At one hour a day, every day, this playlist takes about 1 day. Turn on JavaScript to plan around your week.
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Google Calendar: in the left sidebar, + beside Other calendars → Import → pick the downloaded .ics → choose a calendar → Import. The same menu's From URL subscribes to the feed instead.
Apple Calendar (Mac): double-click the file or drag it onto Calendar → choose a calendar → Add all.
iPhone / iPad: open the file from Files, Mail or Safari's download bar → Add All → choose a calendar.
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Videos (11)
32m 9s in total · tick what you've watched
Tick videos you've watched — progress is saved in this browser. Titles open on YouTube in a new tab.
| Watched | Leave out of the total | ||||
|---|---|---|---|---|---|
| 1 | hello-0 | 2:32 | 2013-10-22 | ||
| 2 | hello-1 | 4:27 | 2013-10-22 | ||
| 3 | hello-2 | 2:10 | 2013-10-22 | ||
| 4 | adder | 3:14 | 2013-10-22 | ||
| 5 | conditions-0 | 2:29 | 2014-06-02 | ||
| 6 | conditions-1 | 1:28 | 2013-10-22 | ||
| 7 | nonswitch | 3:46 | 2013-10-22 | ||
| 8 | switch | 3:13 | 2013-10-22 | ||
| 9 | positive | 2:30 | 2013-10-22 | ||
| 10 | f2c | 4:09 | 2013-10-22 | ||
| 11 | sizeof | 2:11 | 2013-10-22 |
No videos match that filter.
For your README
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[](https://playlistduration.com/playlist/PLhQjrBD2T380JCGC3qD3nGpqt8iIjx2fV)<a href="https://playlistduration.com/playlist/PLhQjrBD2T380JCGC3qD3nGpqt8iIjx2fV"><img src="https://playlistduration.com/badge/playlist/PLhQjrBD2T380JCGC3qD3nGpqt8iIjx2fV.svg" alt="Watch time: 32m 9s · 11 videos" width="202" 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.
Want the numbers themselves? GET https://playlistduration.com/api/v1/playlist/PLhQjrBD2T380JCGC3qD3nGpqt8iIjx2fV returns them as JSON — free, no key. API docs →
Data from the YouTube Data API as of 2026-11-07 (cached). Private or deleted videos are excluded from totals.