Show YouTube Video Upload Date (Official) от Soulbot Software

Also display the upload time, customize the date format, show dates of comments, Shorts, live videos and end-of-video Suggestions and Grid with a $1/mo in-app purchase.

Free and paid version replaces dates on all pages:
- Video page description
- Video page sidebar
- Search page
- Topic sidebar in search
- Homepage videos
- Subscription page
- Channel page home - featured video
- Channel page home - For You videos
- Channel page home - playlist videos
- Channel page videos
- Channel page video search
- Playlist videos
- Explore pages - Music, Gaming, News, Sport

Free and paid features:
- Replace all relative dates with full dates in local format
- Option to show relative date if video was published less than a specified number of days ago

Paid features:
- Show the time
- Show dates and times of comments
- Custom date and time formats
- Show video date below title in Shorts player
- Below Shorts thumbnails - Home, Subscriptions, search, channel pages, playlists, etc
- Below thumbnails for live videos and in Watch History
- End of video - suggested videos and video grid

See website for more information:
https://uploaddate.com