FRM-41844: ADJUST_TZ could not convert date.
Cause: A call to the ADJUST_TZ procedure specified valid 'from' and 'to' time zone region names, but nevertheless failed. This probably indicates that the date was too close to the boundary dates of Jan 1, 4712 BC or Dec 31, 9999 AD.
Action: Specify a valid date.
Trigger: ON-ERROR