Standard Time is 9.5 hours ahead of Greenwich Mean Time (GMT+9.30).
Daylight Saving Time is observed in South Australia, where the time is shifted forward by 1 hour, resulting in a 10 hour 30 minute difference ahead of Greenwich Mean Time (GMT+10:30).
After the Summer months the time is shifted back by 1 hour resulting in the normal Standard Time.
" For the purposes of the Act, the prescribed period for the observance of South Australian summer time is the period from 2.00 am South Australian standard time on the first Sunday in October until 3.00 am South Australian summer time on the first Sunday in the following April.
The International Dialling Code for South Australia is +618.
Government of South Australia website : www.sa.gov.au