Observatory log
Chicago and Apia, compared
- 01Difference now
Apia is 18 hours ahead of Chicago.
Chicago: CDT (UTC−5) · Apia: UTC+13 (UTC+13)
Next changeFrom 1 November 2026: Apia is 19 hours ahead of Chicago.
- 02Through 2026–2027
- 1 January 2026 – 8 March 2026+19 h
- 8 March 2026 – 1 November 2026+18 h
- 1 November 2026 – 14 March 2027+19 h
- 14 March 2027 – 7 November 2027+18 h
- 7 November 2027 – 31 December 2027+19 h
Difference of Apia from Chicago. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
- Mon–Thu: 15:00–17:00 in Chicago = 09:00–11:00 in Apia (tomorrow) · 2 h
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
15:00–17:00 in Chicago = 09:00–11:00 in Apia
Inside both working days (Mon–Thu).
- 05Weekend
Chicago: Saturday and Sunday
Apia: Saturday and Sunday
24 hours
A day in Chicago, in Apia
| Chicago | Apia | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 18:00 | |
| 01:00 | 19:00 | |
| 02:00 | 20:00 | |
| 03:00 | 21:00 | |
| 04:00 | 22:00 | |
| 05:00 | 23:00 | |
| 06:00 | 00:00Tomorrow | |
| 07:00 | 01:00Tomorrow | |
| 08:00 | 02:00Tomorrow | |
| 09:00 | 03:00Tomorrow | |
| 10:00 | 04:00Tomorrow | |
| 11:00 | 05:00Tomorrow | |
| 12:00 | 06:00Tomorrow | |
| 13:00 | 07:00Tomorrow | |
| 14:00 | 08:00Tomorrow | |
| 15:00 | 09:00Tomorrow | |
| 16:00 | 10:00Tomorrow | |
| 17:00 | 11:00Tomorrow | |
| 18:00 | 12:00Tomorrow | |
| 19:00 | 13:00Tomorrow | |
| 20:00 | 14:00Tomorrow | |
| 21:00 | 15:00Tomorrow | |
| 22:00 | 16:00Tomorrow | |
| 23:00 | 17:00Tomorrow |
Working hoursEarly or eveningNightWeekend
Plan a meeting: Chicago and Apia
More time differences with Chicago
Questions
Asked about Chicago and Apia
What is the time difference between Chicago and Apia?
Apia is 18 hours ahead of Chicago. This holds until 1 November 2026; then Apia is 19 hours ahead of Chicago.
What is the best time for a call between Chicago and Apia?
Inside both working days: Mon–Thu: 15:00–17:00 in Chicago = 09:00–11:00 in Apia (tomorrow) · 2 h.
When does the time difference between Chicago and Apia change?
In the next 12 months it changes on: 1 November 2026 (+19 h); 14 March 2027 (+18 h).