Source: Schema.org v30.1 vocabulary. Official uploadDate property definition.
What does uploadDate mean?
Date (including time if available) when this media object was uploaded to this site.
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