Time difference: Hanoi and Sydney

Sydney is 4 hours ahead of Hanoi.

Sydney is 4 hours ahead of Hanoi. Hanoi is UTC+7. Sydney is UTC+11.

Hanoi on 15 October 2026: sunrise 05:51, sunset 17:32, day length 11 h 41 min.

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

For Hanoi and Sydney: Hanoi has no clock change scheduled in the next year. The last year with a seasonal offset change was 1975. The offset now is UTC+7.

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

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
View09:00 to 17:00
From HanoiHanoi 09:00 to 13:00; Sydney 13:00 to 17:00
From SydneySydney 13:00 to 17:00; Hanoi 09:00 to 13:00
Hours in Hanoi and Sydney. Shaded cells are 09:00 to 17:00. The stronger shade is when both are.
HanoiSydney
00:0004:00
01:0005:00
02:0006:00
03:0007:00
04:0008:00
05:0009:00
06:0010:00
07:0011:00
08:0012:00
09:0013:00
10:0014:00
11:0015:00
12:0016:00
13:0017:00
14:0018:00
15:0019:00
16:0020:00
17:0021:00
18:0022:00
19:0023:00
20:0000:00 (next day)
21:0001:00 (next day)
22:0002:00 (next day)
23:0003:00 (next day)
Sun this year
CityLongest dayShortest day
Hanoi with Sydney21 June 2026, 13 h 25 min22 December 2026, 10 h 51 min
Sydney with Hanoi22 December 2026, 14 h 25 min21 June 2026, 9 h 54 min
Next public holidays
CityDateHoliday
Hanoi and Sydney1 January 2027Tết Dương lịch
Hanoi and Sydney5 February 2027Giao thừa Tết Nguyên Đán
Sydney and Hanoi25 December 2026Christmas Day
Sydney and Hanoi26 December 2026Boxing Day