Will the job schedule obey Daylight Saving rules? We have an Oracle 11g Scheduler Job that was created with a start date of 08/AUG/15 05:00:00.100000000 PM AUSTRALIA/SYDNEY and a Repeat_INTERVAL of FREQ=DAILY. Sydney, as a city, observes Daylight Saving. I'm wondering if this job schedule will honour the change in Daylight Saving, or is the AUSTRALIA/SYDNEY component meaningless?
If you want the job to follow DST rules then you need to use a named timezone that follows the DST rules you want to use.


Yes, as you have provided the named time zone in your start date value. 

Reference:DBMS_SCHEDULER or DBMS_JOB And DST / Timezones Explained (Doc ID 467722.1)