Clockjumper

Time difference

Calgary to Sydney Time Difference

Sydney is 17 hours ahead of Calgary — when it's 12:00 PM in Calgary, it's 5:00 AM the next day in Sydney. (Calgary (America/Edmonton, MDT); Sydney (Australia/Sydney, AEDT).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.

Quick answer

Sydney is 17 hours ahead of Calgary. The best window for a call is 4 PM–5 PM in Calgary, which is 9 AM–10 AM in Sydney — a 1-hour overlap inside 9 AM–5 PM on both sides. Clocks change on April 4, 2027, which briefly shifts the gap between Calgary and Sydney — the converter on this page always reflects the correct offset for the date you pick.

  • When it's 9:00 AM in Calgary, it's 2:00 AM the next day in Sydney.
  • When it's 9:00 AM in Sydney, it's 4:00 PM the previous day in Calgary.

Sydney is currently 17 hours ahead of Calgary.

Calgary • MDT
11:48 AM
Monday, Oct 12
Sydney • AEDT
4:48 AM
Tuesday, Oct 13

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Best times to meet

The 9 AM – 5 PM business windows in Calgary and Sydney overlap for 1 hour. 4 PM–5 PM in Calgary is 9 AM–10 AM in Sydney. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.

Quick conversion table

CalgarySydney
12 AM5:00 PM
1 AM6:00 PM
2 AM7:00 PM
3 AM8:00 PM
4 AM9:00 PM
5 AM10:00 PM
6 AM11:00 PM
7 AM12:00 AM (next day)
8 AM1:00 AM (next day)
9 AM2:00 AM (next day)
10 AM3:00 AM (next day)
11 AM4:00 AM (next day)
12 PM5:00 AM (next day)
1 PM6:00 AM (next day)
2 PM7:00 AM (next day)
3 PM8:00 AM (next day)
4 PM9:00 AM (next day)
5 PM10:00 AM (next day)
6 PM11:00 AM (next day)
7 PM12:00 PM (next day)
8 PM1:00 PM (next day)
9 PM2:00 PM (next day)
10 PM3:00 PM (next day)
11 PM4:00 PM (next day)

Daylight saving

On April 4, 2027, Sydney shifts for daylight saving. After that, Sydney will be 16 hours ahead of Calgary (currently 17 hours ahead of Calgary). The converter and the tables above always reflect the correct offset for the date you pick.

  • Calgary is currently observing daylight saving time.
  • Sydney is currently observing daylight saving time.

Frequently asked questions

Is Sydney ahead of or behind Calgary?
Sydney is 17 hours ahead of Calgary.
How many hours ahead of Calgary is Sydney?
Sydney is 17 hours ahead of Calgary.
What time is 9 AM in Calgary in Sydney?
9:00 AM in Calgary is 2:00 AM the next day in Sydney.
What time is noon in Calgary in Sydney?
12:00 PM in Calgary is 5:00 AM the next day in Sydney.
What time is 5 PM in Calgary in Sydney?
5:00 PM in Calgary is 10:00 AM the next day in Sydney. Useful for end-of-day handoffs between the two offices.
What time is 3 PM in Calgary in Sydney?
3:00 PM in Calgary is 8:00 AM the next day in Sydney.
Is Calgary currently observing daylight saving time?
Calgary is currently observing daylight saving time (summer time).
Is Sydney currently observing daylight saving time?
Sydney is currently observing daylight saving time (summer time).
Do Calgary and Sydney observe daylight saving?
On April 4, 2027, Sydney shifts for daylight saving. After that, Sydney will be 16 hours ahead of Calgary (currently 17 hours ahead of Calgary). The converter and the tables above always reflect the correct offset for the date you pick.
When is the best time to call Sydney from Calgary?
Aim for 4 PM–5 PM in Calgary, which is 9 AM–10 AM in Sydney.
When is the best time to call Calgary from Sydney?
Aim for 9 AM–10 AM in Sydney, which is 4 PM–5 PM in Calgary.
Calgary (MDT) to Sydney (AEDT) — how do I convert quickly?
Add 17 hours to Calgary local time to get Sydney local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.

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