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