Does Phoenix observe daylight saving time?

No. Phoenix stays on MST (UTC-7) all year, so its clocks don't change.

Does Sydney observe daylight saving time?

Yes. Sydney is on AEDT (UTC+11) now, and its clocks go back 1 hour on Sun, Apr 4, 2027, to AEST (UTC+10).

What time is it in Sydney when it's 9 AM in Phoenix?

3:00 AM in Sydney, the next day (Sat, Oct 17, when it's Fri, Oct 16 in Phoenix).

Phoenix to Sydney Meeting Planner

Sydney is 18 hours ahead of Phoenix right now. Their working days overlap for 2 hours today.

Phoenix · United States

10:06 PM

Fri, Oct 16 · MST

Sydney · Australia

4:06 PM

Sat, Oct 17 · AEDT · summer time

Best Meeting Times Between Phoenix and Sydney

3:00 PM to 5:00 PM in Phoenix (9:00 AM to 11:00 AM in Sydney). That's when both cities are inside working hours, 9 AM to 5 PM, giving 2 hours of overlap today.

Who's meeting

2 of 4 places

PhoenixOrganizerUnited States ·10:06PMnow
SydneyAustralia ·· summer time4:06PMTomorrow · now

Add a city

Add up to 4 places by city, country, time zone or abbreviation, like Tokyo, India or JST. Press "/" to jump here.

Date in Phoenix

Working hours, everywhere

Best times to meet

Friday, October 16, 2026, in Phoenix time.

3:00PMBest · OptimalWorking hours in Phoenix (15:00) and Sydney (09:00, next day).
4:00PMOption 2 · OptimalWorking hours in Phoenix (16:00) and Sydney (10:00, next day).
1:00PMOption 3 · GoodWorking hours in Phoenix (13:00); just outside working hours in Sydney (07:00, next day).

The whole day

Pick any slot in the Fit row, or use the arrow keys there, to make it the meeting time.

Each column is a one-hour slot of the first place's day. The Fit row grades how well the slot suits everyone; each row shows the local time and whether it's working hours there.
Fit
PhoenixMST
SydneyAEDT
UTC	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06

Working hours (09–17)Just outside (07–09, 17–20)Late evening (20–23)NightFit: optimal, good, possible, poor

Your meeting

Phoenix3:00 PM MSTFri, Oct 16
Sydney9:00 AM AEDTSat, Oct 17
UTC2026-10-16 22:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between Phoenix and Sydney

Sydney is 18 hours ahead of Phoenix right now: Sydney is on AEDT (UTC+11) and Phoenix on MST (UTC-7). That changes on Sun, Apr 4, 2027, when clocks go back in Sydney: then Sydney is 17 hours ahead of Phoenix.

Time difference between Phoenix and Sydney over the next 12 months
From	Difference	Why
Now	Sydney 18 hours ahead	—
Sun, Apr 4, 2027	Sydney 17 hours ahead	Clocks go back in Sydney
Sun, Oct 3, 2027	Sydney 18 hours ahead	Clocks go forward in Sydney

Phoenix is on Mountain Standard Time. Sydney is on Australian Eastern Standard Time.

Frequently Asked Questions: Phoenix & Sydney Scheduling

What is the time difference between Phoenix and Sydney?: Sydney is 18 hours ahead of Phoenix right now: Sydney is on AEDT (UTC+11) and Phoenix on MST (UTC-7). That changes on Sun, Apr 4, 2027, when clocks go back in Sydney: then Sydney is 17 hours ahead of Phoenix.
What is the best time to schedule a meeting between Phoenix and Sydney?: 3:00 PM to 5:00 PM in Phoenix (9:00 AM to 11:00 AM in Sydney). That's when both cities are inside working hours, 9 AM to 5 PM, giving 2 hours of overlap today.
Does Phoenix observe daylight saving time?: No. Phoenix stays on MST (UTC-7) all year, so its clocks don't change.
Does Sydney observe daylight saving time?: Yes. Sydney is on AEDT (UTC+11) now, and its clocks go back 1 hour on Sun, Apr 4, 2027, to AEST (UTC+10).
What time is it in Sydney when it's 9 AM in Phoenix?: 3:00 AM in Sydney, the next day (Sat, Oct 17, when it's Fri, Oct 16 in Phoenix).

Or see every city pair, or plan with more places in the meeting planner.