We have the following meta tag:
<meta name="date" value="2017-08-25T15:59:53.484Z"/>
Is it possible to sort search result using this tag? Or only the following list of formats is supported?
According to this link it is possible to define custom date format. Is it possible to configure document dates using UTC format?
Looking at the supported formats list %Y%m%d%H seems to be the one you should use since it results in purely numerical value that should be easy to sort.