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

dateModified

Canonical URL: http://schema.org/dateModified

Thing > Property > dateModified

The date on which the CreativeWork was most recently modified or when the item's entry was modified within a DataFeed.

Usage: Between 100,000 and 250,000 domains
Values expected to be one of these types
Date
DateTime
Used on these types
CreativeWork
DataFeedItem

Schema Version 3.3