Board Thread:Support Requests - Community Management/@comment-1739368-20180114011550/@comment-25024589-20180114012829

Individual wikis may have their own policies regarding content formatting; there's no global rule for that. If you and others feel that using Wikipedia's airdate format will be the most convenient and useful, feel free to do so.

Personally, I'd also include the timezone of the airdate(s), as well as location(s), but this may not work for your wiki. Ultimately, it's a local decision, and Community Central users usually may only be able to provide their best suggestions.

As for policy examples, I unfortunately cannot think of one currently.