Time Difference Between Arizona Time and Australia
As of 12 October 2026, Australia is 18 hours ahead of Arizona Time. That number is not constant. Over the course of a year, because of daylight saving changes, Sydney, Australia ranges from 17 hours ahead to 18 hours ahead relative to Arizona Time, United States. The calculator below is always up to date.
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Arizona Time, United States
05:45
Mon, Oct 12, 2026
UTC-7 · MST · America/Phoenix
Sydney, Australia
+18h
23:45
Mon, Oct 12, 2026
UTC+11 · Australia/Sydney
Australia is 18 hours ahead of Arizona Time.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Arizona Time | Monday, October 12, 2026 | MSTAmerica/Phoenix | UTC-7 | Not observed |
| Australia | Monday, October 12, 2026 | Australia/Sydney | UTC+11 | Active now |
Arizona Time: Most of Arizona does not observe daylight saving time, so it stays at UTC-7 all year — the same clock as Mountain Standard Time in winter, but 1 hour behind Mountain Time in summer. The Navajo Nation in Arizona is the exception and does observe it.
Australia: Australia has several time zones and only some states use daylight saving. This page uses Eastern Time (Sydney, Melbourne); Perth is 2 to 3 hours behind.
Hour by hour: Arizona Time to Australia
Every hour of today in Arizona Time and what it is in Australia. Highlighted rows fall inside Australia working hours (09:00–18:00).
| Arizona Time | Australia |
|---|---|
| 00:00 | 18:00 |
| 01:00 | 19:00 |
| 02:00 | 20:00 |
| 03:00 | 21:00 |
| 04:00 | 22:00 |
| 05:00 | 23:00 |
| 06:00 | 00:00next day |
| 07:00 | 01:00next day |
| 08:00 | 02:00next day |
| 09:00 | 03:00next day |
| 10:00 | 04:00next day |
| 11:00 | 05:00next day |
| Arizona Time | Australia |
|---|---|
| 12:00 | 06:00next day |
| 13:00 | 07:00next day |
| 14:00 | 08:00next day |
| 15:00 | 09:00next day |
| 16:00 | 10:00next day |
| 17:00 | 11:00next day |
| 18:00 | 12:00next day |
| 19:00 | 13:00next day |
| 20:00 | 14:00next day |
| 21:00 | 15:00next day |
| 22:00 | 16:00next day |
| 23:00 | 17:00next day |
Best time to call or meet
Overlapping working hours
15:00–18:00 in Arizona Time (09:00–12:00 in Australia)
Both places are inside 09:00–18:00 for 3 hours a day. Anything in this window works without asking anyone to stay late.
Reasonable calling hours
14:00–21:00 in Arizona Time (08:00–15:00 in Australia)
Both people are awake and available between 08:00 and 21:00 local time during this window.
When this difference changes
Australia puts its clocks back on Sunday, April 4, 2027
The local offset moves from UTC+11 to UTC+10. After that date, Australia is 17 hours ahead of Arizona Time — instead of 18 hours ahead, as it is today.
Planning something with more than two places?
Adding a third city usually kills the obvious answer. The Meeting Time Finder takes up to five cities at once and shows only the hours that work for everybody.
Arizona Time and Australia: common questions
What is the time difference between Arizona Time and Australia?
As of 12 October 2026, Australia is 18 hours ahead of Arizona Time. The gap is not fixed: across the year, Australia ranges from 17 hours ahead to 18 hours ahead relative to Arizona Time, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in Arizona Time, what time is it in Australia?
It is 03:00 AM in Sydney, Australia. Use the time field in the calculator above to check any other hour.
Is Australia ahead of or behind Arizona Time?
Australia is ahead of Arizona Time by 18 hours at the moment. In practical terms, the working day in Australia starts and ends earlier in Arizona Time terms.
Do Arizona Time and Australia observe daylight saving time?
Australia changes its clocks twice a year; Arizona Time does not. The difference therefore shifts by an hour when Australia switches: across the year, Australia ranges from 17 hours ahead to 18 hours ahead relative to Arizona Time.
What is the best time to call Australia from Arizona Time?
Working hours overlap between 15:00 and 18:00 Arizona Time time, which is 09:00 to 12:00 in Australia. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for Arizona Time, United States (UTC-7) and Sydney, Australia (UTC+11) were generated on Monday, October 12, 2026 UTC and refresh in your browser.