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Australia

Australia
Australia/ACT Australia/Adelaide Australia/Brisbane Australia/Broken_Hill
Australia/Canberra Australia/Currie Australia/Darwin Australia/Eucla
Australia/Hobart Australia/LHI Australia/Lindeman Australia/Lord_Howe
Australia/Melbourne Australia/North Australia/NSW Australia/Perth
Australia/Queensland Australia/South Australia/Sydney Australia/Tasmania
Australia/Victoria Australia/West Australia/Yancowinna  

List of Supported Timezones
PHP Manual