CS50 Lectures 2018
Total watch time
18h 8m
at 1× speed · exactly 18 hours, 8 minutes, 17 seconds at 1×
| 1× | 18h 8m 17s |
|---|---|
| 1.25× | 14h 30m 38s |
| 1.5× | 12h 5m 31s |
| 1.75× | 10h 21m 53s |
| 2× | 9h 4m 9s |
Plan to finish
About 19 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 19 days. Turn on JavaScript to plan around your week.
Videos (11)
18h 8m in total · tick what you've watched
Tick videos you've watched — progress is saved in this browser.
| Watched | ||||
|---|---|---|---|---|
| 1 |
 This is CS50
|
1:52 | 2018-03-24 | |
| 2 |
 CS50 2018 - Lecture 0 - Computational Thinking, Scratch
|
1:10:35 | 2018-10-01 | |
| 3 |
 CS50 2018 - Lecture 1 - C
|
2:13:16 | 2018-09-28 | |
| 4 |
 CS50 2018 - Lecture 2 - Arrays
|
2:07:33 | 2018-09-28 | |
| 5 |
 CS50 2018 - Lecture 3 - Memory
|
2:08:39 | 2018-10-02 | |
| 6 |
 CS50 2018 - Lecture 4 - Data Structures
|
2:03:28 | 2018-10-09 | |
| 7 |
 CS50 2018 - Lecture 5 - HTTP, HTML, CSS
|
1:46:19 | 2018-10-14 | |
| 8 |
 CS50 2018 - Lecture 6 - Python
|
1:52:08 | 2018-11-08 | |
| 9 |
 CS50 2018 - Lecture 7 - Web Programming
|
1:51:46 | 2018-11-01 | |
| 10 |
 CS50 2018 - Lecture 8 - SQL
|
1:54:22 | 2018-11-03 | |
| 11 |
 CS50 2018 - Lecture 9 - Life after 50
|
58:19 | 2018-11-17 |
No videos match that filter.
Embed a badge
Show the watch time in a README or course description — it links back here and updates itself
[](https://playlistduration.com/playlist/PLhQjrBD2T382eX9-tF75Wa4lmlC7sxNDH)<a href="https://playlistduration.com/playlist/PLhQjrBD2T382eX9-tF75Wa4lmlC7sxNDH"><img src="https://playlistduration.com/badge/playlist/PLhQjrBD2T382eX9-tF75Wa4lmlC7sxNDH.svg" alt="Watch time: 18h 8m · 11 videos" width="203" 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/PLhQjrBD2T382eX9-tF75Wa4lmlC7sxNDH 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.