Source: Schema.org v30.1 vocabulary. Official webCheckinTime property definition.
What does webCheckinTime mean?
The time when a passenger can check into the flight online.
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