| Flag | Code | Country | Time Difference (GMT) | Group | Comment | Internet Code |
 | 672 | ANTARCTICA AUSTRALIAN TERRITORY | +4.5 to +10 | AET | (6721) | aq |
 | | Ashmore and Cartier Islands | | AET | | |
| 672 | AUSTRALIAN EXTERNAL TERRITORIES | +4.5 to +11.5 | AET | | |
 | 61 | Christmas Island | 7 | AET | Changed from 6724 to 61964 | cx |
| 61 | Cocos Islands | 6.5 | AET | Changed from 6722 to 61962 | cc |
| | Coral Sea Islands | | AET | | |
| | Heard and McDonald Islands | | AET | | hm |
 | 672 | NORFOLK ISLAND | 11.5 | AET | | nf |