- Specifies the creation date of the page. The date can be entered in
- nearly any format, since it's parsed by [[!cpan TimeDate]].
+ Specifies the creation date of the page. This creates a
+ `<meta name="date" content="...">` header in the HTML output, but also
+ modifies the internal `ctime` in the [[internal index|tips/inside_dot_ikiwiki/]].
+ The date can be entered in nearly any format, since it's parsed by
+ [[!cpan TimeDate]] but invalid dates yield an error in 3.20180321
+ or later.