Time difference: Sydney and Tucson

Tucson is 18 hours behind Sydney.

Tucson is 18 hours behind Sydney. Sydney is UTC+11. Tucson is UTC-7.

Sydney on 15 October 2026: sunrise 06:14, sunset 19:08, day length 12 h 54 min.

Tucson on 15 October 2026: sunrise 06:27, sunset 17:50, day length 11 h 23 min.

For Sydney and Tucson: The next clock change in Sydney is 1 hour back on 4 April 2027 at 03:00, from UTC+11 to UTC+10.

For Tucson and Sydney: Tucson has no clock change scheduled in the next year. January and July both use UTC-7.

When the difference changes
Change
The gap changes on 4 April 2027 at 03:00, when clocks in Sydney move back 1 hour.
The gap changes on 3 October 2027 at 02:00, when clocks in Sydney move forward 1 hour.
The gap changes on 2 April 2028 at 03:00, when clocks in Sydney move back 1 hour.

Working hours from each side
View	09:00 to 17:00
From Sydney	Sydney 09:00 to 11:00; Tucson 15:00 to 17:00 (previous day)
From Tucson	Tucson 15:00 to 17:00; Sydney 09:00 to 11:00 (next day)

Sun this year
City	Longest day	Shortest day
Sydney with Tucson	22 December 2026, 14 h 25 min	21 June 2026, 9 h 54 min
Tucson with Sydney	21 June 2026, 14 h 16 min	21 December 2026, 10 h 2 min