Observatory log
Chicago and Quang Tri, compared
- 01Difference now
Quang Tri is 12 hours ahead of Chicago.
Chicago: CDT (UTC−5) · Quang Tri: UTC+7 (UTC+7)
Next changeFrom 1 November 2026: Quang Tri is 13 hours ahead of Chicago.
- 02Through 2026–2027
- 1 January 2026 – 8 March 2026+13 h
- 8 March 2026 – 1 November 2026+12 h
- 1 November 2026 – 14 March 2027+13 h
- 14 March 2027 – 7 November 2027+12 h
- 7 November 2027 – 31 December 2027+13 h
Difference of Quang Tri from Chicago. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
Their working days never overlap.
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
09:00–10:00 in Chicago = 21:00–22:00 in Quang Tri
No shared office hours: this is early or late for one side (Mon–Fri).
Also possible: Mon–Thu: 21:00–22:00 in Chicago = 09:00–10:00 in Quang Tri (tomorrow) · 1 h.
- 05Weekend
Chicago: Saturday and Sunday
Quang Tri: Saturday and Sunday
24 hours
A day in Chicago, in Quang Tri
| Chicago | Quang Tri | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 12:00 | |
| 01:00 | 13:00 | |
| 02:00 | 14:00 | |
| 03:00 | 15:00 | |
| 04:00 | 16:00 | |
| 05:00 | 17:00 | |
| 06:00 | 18:00 | |
| 07:00 | 19:00 | |
| 08:00 | 20:00 | |
| 09:00 | 21:00 | |
| 10:00 | 22:00 | |
| 11:00 | 23:00 | |
| 12:00 | 00:00Tomorrow | |
| 13:00 | 01:00Tomorrow | |
| 14:00 | 02:00Tomorrow | |
| 15:00 | 03:00Tomorrow | |
| 16:00 | 04:00Tomorrow | |
| 17:00 | 05:00Tomorrow | |
| 18:00 | 06:00Tomorrow | |
| 19:00 | 07:00Tomorrow | |
| 20:00 | 08:00Tomorrow | |
| 21:00 | 09:00Tomorrow | |
| 22:00 | 10:00Tomorrow | |
| 23:00 | 11:00Tomorrow |
Working hoursEarly or eveningNightWeekend
Plan a meeting: Chicago and Quang Tri
More time differences with Chicago
Questions
Asked about Chicago and Quang Tri
What is the time difference between Chicago and Quang Tri?
Quang Tri is 12 hours ahead of Chicago. This holds until 1 November 2026; then Quang Tri is 13 hours ahead of Chicago.
What is the best time for a call between Chicago and Quang Tri?
No shared office hours. The least awkward windows, early or late for one side: Mon–Fri: 09:00–10:00 in Chicago = 21:00–22:00 in Quang Tri · 1 h; Mon–Thu: 21:00–22:00 in Chicago = 09:00–10:00 in Quang Tri (tomorrow) · 1 h.
When does the time difference between Chicago and Quang Tri change?
In the next 12 months it changes on: 1 November 2026 (+13 h); 14 March 2027 (+12 h).