Ninja News Flashes
Total watch time
9m 55s
at 1× speed · exactly 9 minutes, 55 seconds at 1×
| 1× | 9m 55s |
|---|---|
| 1.25× | 7m 56s |
| 1.5× | 6m 37s |
| 1.75× | 5m 40s |
| 2× | 4m 58s |
Average video2m 29s
Longest3m 7s
Shortest2m 8s
Remaining—
Plan to finish
About 1 day at an hour a day
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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 (4)
9m 55s in total · tick what you've watched
Tick videos you've watched — progress is saved in this browser.
| Watched | ||||
|---|---|---|---|---|
| 1 |
 Build Apps with Vue & Firebase - Udemy Course
|
2:09 | 2018-04-27 | |
| 2 |
 New Udemy Course - D3 & Firebase
|
2:08 | 2018-10-15 | |
| 3 |
 New Modern JavaScript Course & Other News
|
3:07 | 2019-04-10 | |
| 4 |
 New Big React Course (with Firebase)
|
2:31 | 2021-10-24 |
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
Markdown
[](https://playlistduration.com/playlist/PL4cUxeGkcC9jticTs2l6Nt2lsybNW0-4O)HTML
<a href="https://playlistduration.com/playlist/PL4cUxeGkcC9jticTs2l6Nt2lsybNW0-4O"><img src="https://playlistduration.com/badge/playlist/PL4cUxeGkcC9jticTs2l6Nt2lsybNW0-4O.svg" alt="Watch time: 9m 55s · 4 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/PL4cUxeGkcC9jticTs2l6Nt2lsybNW0-4O 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.