How to Add Chapters to YouTube Videos (and Why They Don't Show)
Add chapters to a YouTube video with timestamps in the description. The four rules chapters must follow, automatic chapters, and fixes when they don't appear.
Share a YouTube video that starts at an exact minute and second – on desktop, on phone, with the ?t= parameter, or as a clickable time in comments.

Sending someone a ten-minute video and saying “skip to the middle” rarely works. A timestamp link opens the video at the exact moment you mean.
Paste the video link into the timestamp link generator, type a time like 4:05, and copy the short or full link. It works for regular videos, Shorts and saved live streams, and it reads any time already in the link.
Add a t parameter to the link. The time is in seconds, or written as minutes and seconds:
| Link type | Example | Starts at |
|---|---|---|
| Short link | https://youtu.be/VIDEO_ID?t=245 | 4:05 |
| Full link | https://www.youtube.com/watch?v=VIDEO_ID&t=245s | 4:05 |
| Full link, minutes | https://www.youtube.com/watch?v=VIDEO_ID&t=4m5s | 4:05 |
Note the difference: short links start the parameters with ?, full links already have ?v=, so the time is added with &.
Just type the time — 4:05 or 1:02:30 — in a YouTube comment or your description. YouTube turns it into a link that jumps to that point in the same video. No URL needed.
The YouTube app’s share menu doesn’t always offer a start time. The quickest option is to note the time on the progress bar, copy the link with Share → Copy link, and add ?t= plus the seconds — or paste it into our generator.
If you want your own video to have permanent clickable sections, add chapters instead.
The t value is easiest in seconds: minutes × 60 + seconds (and hours × 3600).
| Minutes:seconds | Value for t |
|---|---|
| 0:45 | 45 |
| 1:30 | 90 |
| 4:05 | 245 |
| 10:00 | 600 |
| 1:02:30 | 3750 |
On your own website the player uses start instead of t, and it also accepts end, so you can show just one part of a video:
<iframe src="https://www.youtube-nocookie.com/embed/VIDEO_ID?start=245&end=300"
width="560" height="315" allowfullscreen></iframe>
Both values are in seconds. Our embed code generator adds the start time for you.
Add t to a playlist link with & and the video opens at that moment, then the playlist continues normally:
https://www.youtube.com/watch?v=VIDEO_ID&list=PLAYLIST_ID&t=245s
t=4:05 with a colon — YouTube ignores it. Write t=245 or t=4m5s.?si=…, so add the time with &: youtu.be/VIDEO_ID?si=abc&t=245.youtube.com/watch?v=VIDEO_ID&t=10s to jump inside a Short.Yes. When someone opens a link with ?t= on their phone, the YouTube app normally starts the video at that time.
Normal links can't set an end time. For embedded videos on a website, use the end= parameter – our embed code generator adds it for you.
Not a normal YouTube link: it can only set where playback starts. An embedded player can do both with start and end, for example ?start=245&end=300, which plays only that part on your website.
The most common reasons are a time written as 4:05 instead of 245 or 4m5s, a second ? in the link instead of &, a Short opened in the Shorts player, or a stream that is still live. Each fix is described in this article.
Paste a link and download every available size, up to 1280×720.
Open the downloaderAdd chapters to a YouTube video with timestamps in the description. The four rules chapters must follow, automatic chapters, and fixes when they don't appear.
How to choose a thumbnail frame for YouTube Shorts when uploading, what you can change afterwards, and why Shorts thumbnails download as landscape images.
Change a YouTube video thumbnail in YouTube Studio on a computer or in the Studio app on your phone, plus what to do when custom thumbnails are greyed out.