CS50 Intros
Total watch time
7m 15s
at 1× speed · exactly 7 minutes, 15 seconds at 1×
| 1× | 7m 15s |
|---|---|
| 1.25× | 5m 48s |
| 1.5× | 4m 50s |
| 1.75× | 4m 9s |
| 2× | 3m 38s |
Average video1m 13s
Longest1m 24s
Shortest55s
Remaining—
Plan to finish
About 1 day at an hour a day
Pick a daily pace and the days you'll watch. Ticked videos are skipped.
Days
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 (first session)
The .ics file imports into Google Calendar, Apple Calendar and Outlook — one event per study day listing that day's videos. Subscribing instead keeps the plan in step with the playlist: new videos become new sessions. In Google Calendar use Other calendars → From URL with the copied feed URL.
Videos (6)
7m 15s in total · tick what you've watched
Tick videos you've watched — progress is saved in this browser.
| Watched | ||||
|---|---|---|---|---|
| 1 |
 This is CS50x 2025 - Coming January 1 to YouTube, edX, Apple TV, and Google TV
|
1:17 | 2024-11-20 | |
| 2 |
 This is CS50x 2024 - Coming January 1 to YouTube, edX, Apple TV, and Google TV
|
1:06 | 2023-11-20 | |
| 3 |
 This is CS50x 2023
|
1:15 | 2022-12-21 | |
| 4 |
 This is CS50x 2022, now in 4K HDR
|
1:18 | 2021-12-17 | |
| 5 |
 Intro - CS50 2020
|
0:55 | 2020-12-24 | |
| 6 |
 CS50 2019 - Coming Fall 2019
|
1:24 | 2019-08-23 |
No videos match that filter.
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Markdown
[](https://playlistduration.com/playlist/PLhQjrBD2T383DyrxfFimvZBSf5GaAA9cP)HTML
<a href="https://playlistduration.com/playlist/PLhQjrBD2T383DyrxfFimvZBSf5GaAA9cP"><img src="https://playlistduration.com/badge/playlist/PLhQjrBD2T383DyrxfFimvZBSf5GaAA9cP.svg" alt="Watch time: 7m 15s · 6 videos" width="195" 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/PLhQjrBD2T383DyrxfFimvZBSf5GaAA9cP returns them as JSON — free, no key. API docs →
Data from the YouTube Data API as of 2026-09-22 (cached). Private or deleted videos are excluded from totals.