Title text:
Please, we need your help. Our research suggests you’re the last living descendant of the person who knew how to format this config file.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3245/
I would argue that even on-hover popups are insufficient, because they normally don’t make it into screenshots and that’s the use-case where you’re most likely to really want to know the absolute timestamp.