TRIGGER_ TIMEZONE
Purpose: This column/property specifies the timezone of the absolute trigger time. The corresponding datetime is stored in TRIGGER_TIME. The value of a timezone can be:
the id of a Java timezone to represent the given timezone.
null to represent floating time. If an invalid value is passed, the Timezone is ignored and interpreted as UTC. See [https://tools.ietf.org/html/rfc5545#section-3.8.2.4] Type: String