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