!!! Overview
[{$pagename}] is typically a data-type that is  a [DateTime] or [Date Form] or [Timestamp]


Specific details of the data-type [{$pagename}] are context dependent.

[{$pagename}] generally implies there are both a [date] and a [time].

!! [ISO 8601] and [{$pagename}] (or [Date]-[Time])
[ISO 8601] allows the following [Date] and [Time] formats:
* [Date]: 2017-10-14
* Combined [date] and [time] in [UTC]: 2017-10-14T08:32:47+00:00
* Combined [date] and [time] in [UTC]: 2017-10-14T08:32:47Z
* Combined [date] and [time] in [UTC]: 20171014T083247Z

!! [JSON] and [{$pagename}]
[JSON] itself does not specify how [Date]-[Time] should be represented, but [JavaScript] does.

You should use the format emitted by [Date]'s to [JSON] method:
%%prettify 
{{{
2012-04-23T18:25:43.511Z
}}} /%

Here's why:
* It's human readable but also succinct
* It sorts correctly
* It includes fractional [seconds], which can help re-establish chronology
* It conforms to [ISO 8601]
* [ISO 8601] has been well-established internationally for more than a decade
* [ISO 8601] is endorsed by [W3C], [RFC 3339], and [XKCD]

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]