https://support.spotify.com/us/podcasters/article/enabling-podcast-chapters/
Your first chapter timestamp must start at 0
Example: 00:00 or 00:00:00
There must be a minimum of 3 chapters
Chapters must be declared on separate new lines (or with line breaks if using html)
Chapters should follow a “{timestamp}{title}” format
(MM:SS); MM:SS; (HH:MM:SS); HH:MM:SS are all acceptable, followed by the title in plain text (try not to use emojis or HTML in your titles)
One punctuation mark between {timestamp}{title} is permissible
Example: (00:00) Introduction or 00:00-Introduction
Chapter timestamps should be in chronological order
Youtube
https://support.google.com/youtube/answer/9884579?hl=en
Make sure that the first timestamp you list starts with 00:00.
Your video should have at least three timestamps listed in ascending order.
The minimum length for video chapters is 10 seconds.
https://support.spotify.com/us/podcasters/article/enabling-podcast-chapters/
Your first chapter timestamp must start at 0
Example: 00:00 or 00:00:00
There must be a minimum of 3 chapters
Chapters must be declared on separate new lines (or with line breaks if using html)
Chapters should follow a “{timestamp}{title}” format
(MM:SS); MM:SS; (HH:MM:SS); HH:MM:SS are all acceptable, followed by the title in plain text (try not to use emojis or HTML in your titles)
One punctuation mark between {timestamp}{title} is permissible
Example: (00:00) Introduction or 00:00-Introduction
Chapter timestamps should be in chronological order
Youtube
https://support.google.com/youtube/answer/9884579?hl=en
Make sure that the first timestamp you list starts with 00:00.
Your video should have at least three timestamps listed in ascending order.
The minimum length for video chapters is 10 seconds.