Time difference: Chicago and Hanoi

Hanoi is 12 hours ahead of Chicago.

Hanoi is 12 hours ahead of Chicago. Chicago is UTC-5. Hanoi is UTC+7.

Chicago on 15 October 2026: sunrise 07:03, sunset 18:08, day length 11 h 6 min.

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

For Chicago and Hanoi: The next clock change in Chicago is 1 hour back on 1 November 2026 at 02:00, from UTC-5 to UTC-6.

For Hanoi and Chicago: 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.

When the difference changes
Change
The gap changes on 1 November 2026 at 02:00, when clocks in Chicago move back 1 hour.
The gap changes on 14 March 2027 at 02:00, when clocks in Chicago move forward 1 hour.
The gap changes on 7 November 2027 at 02:00, when clocks in Chicago move back 1 hour.
Working hours from each side
View09:00 to 17:00
From ChicagoChicago and Hanoi have no hour that is 09:00 to 17:00 in both cities.
From HanoiHanoi and Chicago have no hour that is 09:00 to 17:00 in both cities.
Hours in Chicago and Hanoi. Shaded cells are 09:00 to 17:00. The stronger shade is when both are.
ChicagoHanoi
00:0012:00
01:0013:00
02:0014:00
03:0015:00
04:0016:00
05:0017:00
06:0018:00
07:0019:00
08:0020:00
09:0021:00
10:0022:00
11:0023:00
12:0000:00 (next day)
13:0001:00 (next day)
14:0002:00 (next day)
15:0003:00 (next day)
16:0004:00 (next day)
17:0005:00 (next day)
18:0006:00 (next day)
19:0007:00 (next day)
20:0008:00 (next day)
21:0009:00 (next day)
22:0010:00 (next day)
23:0011:00 (next day)
Sun this year
CityLongest dayShortest day
Chicago with Hanoi21 June 2026, 15 h 14 min21 December 2026, 9 h 8 min
Hanoi with Chicago21 June 2026, 13 h 25 min22 December 2026, 10 h 51 min
Next public holidays
CityDateHoliday
Chicago and Hanoi11 November 2026Veterans Day
Chicago and Hanoi26 November 2026Thanksgiving Day
Hanoi and Chicago1 January 2027Tết Dương lịch
Hanoi and Chicago5 February 2027Giao thừa Tết Nguyên Đán