A value to alter local time zone information. The default is "" (empty string), which means that the driver determines local time zone information from the operating system. If it is not available from the operating system, the driver defaults to using the setting on the Oracle server.
Valid Values
Valid values are specified as offsets from GMT as follows: (–)HH:MM. For example, -08:00 equals GMT minus 8 hours.
The driver uses the value of this option to issue an ALTER SESSION for local time zone at connection time.