filter (more comfortable)

by CS50 · 5 videos

Total watch time

28m 37s

at 1× speed · exactly 28 minutes, 37 seconds at 1×

custom

1×	28m 37s
1.25×	22m 54s
1.5×	19m 5s
1.75×	16m 21s
2×	14m 19s

Average video5m 43s

Longest10m 37s

Shortest2m 5s

Compare Open on YouTube JSON

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.

At one hour a day, every day, this playlist takes about 1 day. Turn on JavaScript to plan around your week.

Videos (5)

28m 37s in total · tick what you've watched

Tick videos you've watched — progress is saved in this browser.


1	filter (more comfortable) - CS50 Walkthroughs 2019	7:01	2019-09-27
2	filter / grayscale - CS50 Walkthroughs 2019	4:18	2019-09-27
3	filter / reflect - CS50 Walkthroughs 2019	2:05	2019-09-27
4	filter / blur (more comfortable) - CS50 Walkthroughs 2019	4:36	2019-09-27
5	filter / edges - CS50 Walkthroughs 2019	10:37	2019-09-27

Embed a badge

Show the watch time in a README or course description — it links back here and updates itself

Markdown

[![Watch time: 28m 37s · 5 videos](https://playlistduration.com/badge/playlist/PLhQjrBD2T382OwvMbZuaMGtD9wZkhnhYj.svg)](https://playlistduration.com/playlist/PLhQjrBD2T382OwvMbZuaMGtD9wZkhnhYj)

HTML

<a href="https://playlistduration.com/playlist/PLhQjrBD2T382OwvMbZuaMGtD9wZkhnhYj"><img src="https://playlistduration.com/badge/playlist/PLhQjrBD2T382OwvMbZuaMGtD9wZkhnhYj.svg" alt="Watch time: 28m 37s · 5 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/PLhQjrBD2T382OwvMbZuaMGtD9wZkhnhYj 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.