Calgary vs Sydney
Sydney is 17 hours ahead Calgary
Calgary
Sydney
The DST gap
When daylight saving changes don't line up, the gap between Calgary and Sydney shifts.
Right now the gap is unusual: 17h instead of 16h or 18h.
Sydney is 17 hours ahead of Calgary until Nov 1, when Calgary clocks go back 1 hour. A recurring meeting set in one city's time lands at a different local time in the other until then.
Next change in 11 days (Nov 1, 2026): Calgary clocks go back 1 hour, and the gap goes from 17h to 18h.
2026 · usually 18h in January, 16h in July
The dark line is today.
Mar 8 – Apr 5: 17h, on the way from 18h to 16h · 27 days · past
Starts when Calgary clocks go forward 1 hour; ends when Sydney clocks go back 1 hour.
Oct 4 – Nov 1: 17h, on the way from 16h to 18h · 29 days · now
Starts when Sydney clocks go forward 1 hour; ends when Calgary clocks go back 1 hour.
Computed from the IANA time zone database; no dates are typed in by hand. See which popular city pairs are drifting right now
Meeting Planner
Best times to call between Calgary and Sydney
Current scheduled offset: 17 hours ahead. DST rules are automatically applied.