Playlist · NPTEL IIT Delhi
Corrosion/Environmental Degradation/Surface Engineering
Total watch time
1d 13h 39m
at 1× speed · exactly 1 day, 13 hours, 39 minutes, 25 seconds at 1×
At an hour a day you'd finish in 38 days
The shape of the course
Each column is one video, to scale
WatchedTo watch
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Your plan
Plan to finish
About 38 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 38 days. Turn on JavaScript to plan around your week.
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Videos (36)
1d 13h 39m 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 | ||||
|---|---|---|---|---|
| 1 | INTRO | 14:02 | 2023-05-19 | |
| 2 | LECTURE 1 | 48:42 | 2023-07-20 | |
| 3 | LECTURE 2 | 57:03 | 2023-07-20 | |
| 4 | LECTURE 2A | 56:51 | 2023-07-20 | |
| 5 | LECTURE 3 | 47:49 | 2023-07-31 | |
| 6 | LECTURE 4 | 1:11:58 | 2023-07-31 | |
| 7 | LECTURE 4A | 36:32 | 2023-07-31 | |
| 8 | LECTURE 5 | 56:41 | 2023-07-31 | |
| 9 | LECTURE 6 | 1:42:21 | 2023-08-06 | |
| 10 | LECTURE 7 | 1:10:44 | 2023-08-13 | |
| 11 | LECTURE 8 | 41:53 | 2023-08-13 | |
| 12 | LECTURE 8A | 36:24 | 2023-08-13 | |
| 13 | LECTURE 9 | 1:23:00 | 2023-08-20 | |
| 14 | LECTURE 10 | 1:04:51 | 2023-08-20 | |
| 15 | LECTURE 11 | 54:49 | 2023-08-28 | |
| 16 | LECTURE 12 | 1:15:09 | 2023-08-28 | |
| 17 | LECTURE 13 | 1:04:56 | 2023-08-28 | |
| 18 | LECTURE 14 | 1:25:05 | 2023-09-04 | |
| 19 | LECTURE 15 | 1:02:26 | 2023-09-04 | |
| 20 | LECTURE 16 | 57:03 | 2023-09-04 | |
| 21 | LECTURE 17 | 1:18:01 | 2023-09-10 | |
| 22 | LECTURE 18 | 1:35:00 | 2023-09-10 | |
| 23 | LECTURE 19 | 1:08:42 | 2023-09-10 | |
| 24 | LECTURE 20 | 1:08:58 | 2023-09-18 | |
| 25 | LECTURE 21 | 1:01:40 | 2023-09-18 | |
| 26 | LECTURE 22 | 56:10 | 2023-09-18 | |
| 27 | LECTURE 23 | 48:12 | 2023-09-18 | |
| 28 | LECTURE 24 | 1:08:57 | 2023-09-25 | |
| 29 | LECTURE 25 | 59:49 | 2023-09-25 | |
| 30 | LECTURE 26 | 1:03:20 | 2023-09-25 | |
| 31 | LECTURE 27 | 1:03:46 | 2023-10-02 | |
| 32 | LECTURE 28 | 1:11:50 | 2023-10-02 | |
| 33 | LECTURE 29 | 1:13:28 | 2023-10-02 | |
| 34 | LECTURE 30 | 1:03:55 | 2023-10-09 | |
| 35 | LECTURE 31 | 1:07:54 | 2023-10-09 | |
| 36 | LECTURE 32 | 1:01:24 | 2023-10-09 |
No videos match that filter.
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[](https://playlistduration.com/playlist/PLp6ek2hDcoNDiczxIkf_F500ChBxDNu5w)<a href="https://playlistduration.com/playlist/PLp6ek2hDcoNDiczxIkf_F500ChBxDNu5w"><img src="https://playlistduration.com/badge/playlist/PLp6ek2hDcoNDiczxIkf_F500ChBxDNu5w.svg" alt="Watch time: 1d 13h 39m · 36 videos" width="228" 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/PLp6ek2hDcoNDiczxIkf_F500ChBxDNu5w returns them as JSON — free, no key. API docs →
Data from the YouTube Data API as of 2026-10-23 (cached). Private or deleted videos are excluded from totals.