Does Calgary observe daylight saving time?

Yes. Calgary is on MDT (UTC-6) now, and its clocks go back 1 hour on Sun, Nov 1, to MST (UTC-7).

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 Calgary?

2:00 AM in Sydney, the next day (Sun, Oct 18, when it's Sat, Oct 17 in Calgary).

Calgary to Sydney Meeting Planner

Sydney is 17 hours ahead of Calgary right now. Their working days overlap for 1 hour today.

Calgary · Canada

11:05 AM

Sat, Oct 17 · MDT · summer time

Sydney · Australia

4:05 AM

Sun, Oct 18 · AEDT · summer time

Best Meeting Times Between Calgary and Sydney

4:00 PM to 5:00 PM in Calgary (9:00 AM to 10:00 AM in Sydney). That's when both cities are inside working hours, 9 AM to 5 PM, giving 1 hour of overlap today.

Who's meeting

2 of 4 places

CalgaryOrganizerCanada ·· summer time11:05AMnow
SydneyAustralia ·· summer time4:05AMTomorrow · 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 Calgary

Working hours, everywhere

Best times to meet

Saturday, October 17, 2026, in Calgary time.

4:00PMBest · OptimalWorking hours in Calgary (16:00) and Sydney (09:00, next day).
2:00PMOption 2 · GoodWorking hours in Calgary (14:00); just outside working hours in Sydney (07:00, next day).
3:00PMOption 3 · GoodWorking hours in Calgary (15:00); just outside working hours in Sydney (08:00, 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
CalgaryMDT
SydneyAEDT
UTC	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05

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

Your meeting

Calgary4:00 PM MDTSat, Oct 17
Sydney9:00 AM AEDTSun, Oct 18
UTC2026-10-17 22:00 UTC

What will it cost? Try the meeting cost calculator.

Time difference between Calgary and Sydney

Sydney is 17 hours ahead of Calgary right now: Sydney is on AEDT (UTC+11) and Calgary on MDT (UTC-6). That changes on Sun, Nov 1, when clocks go back in Calgary: then Sydney is 18 hours ahead of Calgary.

Time difference between Calgary and Sydney over the next 12 months
From	Difference	Why
Now	Sydney 17 hours ahead	—
Sun, Nov 1	Sydney 18 hours ahead	Clocks go back in Calgary
Sun, Mar 14, 2027	Sydney 17 hours ahead	Clocks go forward in Calgary
Sun, Apr 4, 2027	Sydney 16 hours ahead	Clocks go back in Sydney
Sun, Oct 3, 2027	Sydney 17 hours ahead	Clocks go forward in Sydney

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

Frequently Asked Questions: Calgary & Sydney Scheduling

What is the time difference between Calgary and Sydney?: Sydney is 17 hours ahead of Calgary right now: Sydney is on AEDT (UTC+11) and Calgary on MDT (UTC-6). That changes on Sun, Nov 1, when clocks go back in Calgary: then Sydney is 18 hours ahead of Calgary.
What is the best time to schedule a meeting between Calgary and Sydney?: 4:00 PM to 5:00 PM in Calgary (9:00 AM to 10:00 AM in Sydney). That's when both cities are inside working hours, 9 AM to 5 PM, giving 1 hour of overlap today.
Does Calgary observe daylight saving time?: Yes. Calgary is on MDT (UTC-6) now, and its clocks go back 1 hour on Sun, Nov 1, to MST (UTC-7).
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 Calgary?: 2:00 AM in Sydney, the next day (Sun, Oct 18, when it's Sat, Oct 17 in Calgary).

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