Time, road side, electricity, plugs, communications and standard country identifiers in one practical reference.
For Australia, civil time is represented by Australia/Sydney, traffic keeps to the left side, the listed mains supply is 230 V, the international calling code is +61, and the country-code domain is .au.
Australia uses multiple IANA zones on this page: Australia/Lord_Howe, Antarctica/Macquarie, Australia/Hobart, Australia/Melbourne, Australia/Sydney, Australia/Broken_Hill, Australia/Brisbane, Australia/Lindeman, Australia/Adelaide, Australia/Darwin, Australia/Perth, Australia/Eucla.
Vehicles normally travel on the left side of the road in Australia.
2 angled flat pins with earth pin
For Australia, measurement: This page uses SI (metric) units as the reference system for measurement comparisons. Everyday and sector-specific practice may also use other units.
| Field | Australia | Authority / basis |
|---|---|---|
| Time zone | Australia/Sydney | IANA |
| Driving side | Left side | Cited road convention |
| Mains voltage | 230 V | Cited electrical reference |
| Commercial frequency | 50 Hz | Cited electrical reference |
| Calling code | +61 | ITU |
| ccTLD | .au | IANA Root Zone |
| ISO alpha-2 | AU | ISO 3166 |
| ISO alpha-3 | AUS | ISO 3166 |
| ISO numeric | 036 | ISO 3166 |
| Measurement practice | This page uses SI (metric) units as the reference system for measurement comparisons. Everyday and sector-specific practice may also use other units. | Page methodology |
The source cards below document Australia's cited practical-data fields, including calling code +61, ccTLD .au, time-zone reference Australia/Sydney, and identify the authority used for each claim.