Observatory log
Chicago and Tuy Hoa, compared
- 01Difference now
Tuy Hoa is 12 hours ahead of Chicago.
Chicago: CDT (UTC−5) · Tuy Hoa: UTC+7 (UTC+7)
Next changeFrom 1 November 2026: Tuy Hoa 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 Tuy Hoa 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 Tuy Hoa
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 Tuy Hoa (tomorrow) · 1 h.
- 05Weekend
Chicago: Saturday and Sunday
Tuy Hoa: Saturday and Sunday
24 hours
A day in Chicago, in Tuy Hoa
| Chicago | Tuy Hoa | 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 Tuy Hoa
More time differences with Chicago
Questions
Asked about Chicago and Tuy Hoa
What is the time difference between Chicago and Tuy Hoa?
Tuy Hoa is 12 hours ahead of Chicago. This holds until 1 November 2026; then Tuy Hoa is 13 hours ahead of Chicago.
What is the best time for a call between Chicago and Tuy Hoa?
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 Tuy Hoa · 1 h; Mon–Thu: 21:00–22:00 in Chicago = 09:00–10:00 in Tuy Hoa (tomorrow) · 1 h.
When does the time difference between Chicago and Tuy Hoa change?
In the next 12 months it changes on: 1 November 2026 (+13 h); 14 March 2027 (+12 h).