Source: Schema.org v30.1 vocabulary. Official sdDatePublished property definition.
What does sdDatePublished mean?
Indicates the date on which the current structured data was generated / published. Typically used alongside [[sdPublisher]].
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status