AEST to Chicago Time Converter
CST is 17 hours behind AEDT. 9:00 AM AEDT = 4:00 PM CST (previous day).
CST is 17 hours behind AEDT at the moment. To convert AEST to Chicago Time, subtract 17 hours from the AEST time: 9:00 AM AEDT = 4:00 PM CST (previous day).
AEST (Australian Eastern Time) is used in New South Wales, Victoria, Tasmania, ACT; Queensland (Brisbane) all year. Chicago Time (Chicago time) is used in Chicago, USA.
Queensland stays on AEST all year. AEST (Australian Eastern Standard Time) is not in force right now: New South Wales is currently on AEDT. This page uses whichever name applies on the date you pick, so the numbers below say AEDT.
AEST to Chicago Time time conversion table
AEST to Chicago Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| AEST | Chicago Time |
|---|---|
| 12:00 AM | 7:00 AM−1 |
| 1:00 AM | 8:00 AM−1 |
| 2:00 AM | 9:00 AM−1 |
| 3:00 AM | 10:00 AM−1 |
| 4:00 AM | 11:00 AM−1 |
| 5:00 AM | 12:00 PM−1 |
| 6:00 AM | 1:00 PM−1 |
| 7:00 AM | 2:00 PM−1 |
| AEST | Chicago Time |
|---|---|
| 8:00 AM | 3:00 PM−1 |
| 9:00 AM | 4:00 PM−1 |
| 10:00 AM | 5:00 PM−1 |
| 11:00 AM | 6:00 PM−1 |
| 12:00 PM | 7:00 PM−1 |
| 1:00 PM | 8:00 PM−1 |
| 2:00 PM | 9:00 PM−1 |
| 3:00 PM | 10:00 PM−1 |
| AEST | Chicago Time |
|---|---|
| 4:00 PM | 11:00 PM−1 |
| 5:00 PM | 12:00 AM |
| 6:00 PM | 1:00 AM |
| 7:00 PM | 2:00 AM |
| 8:00 PM | 3:00 AM |
| 9:00 PM | 4:00 AM |
| 10:00 PM | 5:00 AM |
| 11:00 PM | 6:00 AM |
Conversion table from AEST to Chicago Time for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in Chicago Time, −1 the previous day.
- ✓ marks 9 AM–5 PM in both places
- Greyed times are night in the destination (10 PM–6 AM)
How to convert AEST to Chicago Time
Subtract 17 hours from the AEST time to get Chicago Time.
Example: 9:00 AM AEDT = 4:00 PM CST (previous day).
Across midnight: 1:00 AM AEDT = 8:00 AM CST (previous day). The date changes, so always check the day as well as the hour.
Time difference between AEST and Chicago Time
The time difference between AEST and Chicago Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 7 Mar 2026: Chicago Time is 17 hours behind of AEST.
- 8 Mar 2026 – 4 Apr 2026: Chicago Time is 16 hours behind of AEST.
- 5 Apr 2026 – 3 Oct 2026: Chicago Time is 15 hours behind of AEST.
- 4 Oct 2026 – 31 Oct 2026: Chicago Time is 16 hours behind of AEST.
- 1 Nov 2026 – 31 Dec 2026: Chicago Time is 17 hours behind of AEST.
AEST and Chicago Time during daylight saving time
- AEST next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from AEDT (UTC+11) to AEST (UTC+10).
- Chicago Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from CST (UTC−6) to CDT (UTC−5).
Best time for a meeting between AEST and Chicago Time
AEST and Chicago Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM AEDT, which is 2:00 PM CST.
AEST to Chicago Time FAQ
What is the time difference between AEST and Chicago Time?
Right now CST is 17 hours behind AEDT. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM AEST in Chicago Time?
9:00 AM AEDT is 4:00 PM CST (previous day).
What is 12 PM (noon) AEST in Chicago Time?
12:00 PM AEDT is 7:00 PM CST (previous day).
Is Chicago Time ahead of or behind AEST?
CST is 17 hours behind AEDT, so it is earlier in Chicago Time than in AEST.
Does AEST change for daylight saving time?
Yes. AEST next changes on 4 Apr 2027, when clocks go back one hour from AEDT to AEST.
Does Chicago Time change for daylight saving time?
Yes. Chicago Time next changes on 14 Mar 2027, when clocks go forward one hour from CST to CDT.
What is the best time for a meeting between AEST and Chicago Time?
AEST and Chicago Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM AEDT, which is 2:00 PM CST.
Related conversions
Convert Chicago Time to AEST
Convert AEST to other time zones
Convert other time zones to Chicago Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.