Drops a time zone from the database.
DROP TIME ZONE [ IF EXISTS ] name
Use the IF EXISTS clause if you do not want an error returned when the DROP TIME ZONE statement attempts to remove a time zone that does not exist.
A time zone cannot be dropped if it has been set using the time_zone database option.
You must have either the MANAGE TIME ZONE or DROP ANY OBJECT system privilege.
Automatic commit.
This example drops a fictitious time zone, MyTimeZone, from the database.
DROP TIME ZONE MyTimeZone;