core + pending (Pending Extension): these terms are pending wider review. Feedback is welcomed!

contentReferenceTime

Defined in the pending.schema.org extension.
Canonical URL: http://schema.org/contentReferenceTime

Thing > Property > contentReferenceTime

The specific time described by a creative work, for works (e.g. articles, video objects etc.) that emphasise a particular moment within an Event.
Values expected to be one of these types
DateTime
Used on these types
CreativeWork

Source

https://github.com/schemaorg/schemaorg/issues/1050

Schema Version 3.2