No more 4:30am sunrise & have better time zones in Australia

No more 4:30am sunrise & have better time zones in Australia
I am suggesting the 4 official times for Australia:
Winter: AWST [+8h, WA], ACWST [+9h, Eastern WA], ACST [+9.5h, NT, Western QLD, SA & Broken Hill], AEST [+10h, QLD, NSW, ACT, Vic & Tas]
Summer: AWDT [+9h, WA], ACWDT [+10h, Eastern WA], ACDT [+10.5h, NT, Western QLD, SA & Broken Hill], AEDT [+11h, QLD, NSW, ACT, Vic & Tas]