core + attic (Attic Area): these terms have been either depricated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

webCheckinTime

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

Thing > Property > webCheckinTime

The time when a passenger can check into the flight online.

Usage: Fewer than 10 domains
Values expected to be one of these types
DateTime
Used on these types
Flight

Schema Version 3.2