Season 30 will be starting at the following dates/times:
North America: Friday, January 12 @ 5:00pm PT
NSW/Vic/Tas/ACT: Saturday, January 13 @ 12pm
Qld: Saturday, January 13 @ 11am
SA: Saturday, January 13 @ 11:30am
NT: Saturday, January 13 @ 10:30am
WA: Saturday, January 13 @ 9am
NZ: Saturday, January 13 @ 2pm
Blog: Season 30 The Lords of Hell - Preview - Diablo III
For those intending to start on Asia server, Season 30 will start Friday, January 12 @ 5:00pm KST = Friday, January 12 7pm AEDT / 6pm AEST / 4pm AWST / 9pm NZ.