AWST to Chicago
-13hAWST
AWSTSOURCEChicago
CDTGreen rows indicate typical business hours (9 AM - 5 PM)
AWST and CDT on the World Map
The map below highlights the AWST (Australian Western Standard Time) and CDT (Central Standard Time) timezone regions across the globe.
AWST – Australian Western Standard Time
UTC+08:00Australian Western Standard Time (AWST) is the time zone for Western Australia, 8 hours ahead of UTC.
- •Western Australia does not observe daylight saving time.
- •Perth is the most isolated major city in the world.
- •AWST is the same offset as China Standard Time and Singapore Time.
CST – Central Standard Time
UTC-06:00Central Standard Time (CST) is the time zone for the central United States, Canada, and Mexico, 6 hours behind UTC.
- •CST covers 20 US states fully or partially.
- •Chicago and Houston are the two largest cities in the Central Time Zone.
- •Mexico City, one of the world's most populous cities, operates on CST.
- •CST is 1 hour behind EST and 2 hours ahead of PST.
About Chicago
WikipediaChicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.
The Chicago Board of Trade is the world's oldest futures and options exchange.
Comparing Time Zones: AWST and Chicago
AWST runs on Australian Western Standard Time (AWST) at UTC+08:00. Chicago runs on Central Daylight Time (CDT) at UTC-05:00, also currently on daylight saving time. That puts AWST 13 hours behind Chicago — a difference of -13h at the current offsets.
In practice, when it is 9:00 AM in AWST it is 8:00 PM in Chicago on the previous day. Midnight in AWST is 11:00 AM in Chicago.Chicago observes daylight saving time while AWST does not, so the gap narrows or widens by an hour part of the year.
AWST to Chicago time conversion table
| AWST (AWST) | Chicago (CDT) | Day |
|---|---|---|
| 12:00 AM | 11:00 AM | previous day |
| 6:00 AM | 5:00 PM | previous day |
| 7:00 AM | 6:00 PM | previous day |
| 8:00 AM | 7:00 PM | previous day |
| 9:00 AM | 8:00 PM | previous day |
| 12:00 PM | 11:00 PM | previous day |
| 3:00 PM | 2:00 AM | same day |
| 5:00 PM | 4:00 AM | same day |
| 6:00 PM | 5:00 AM | same day |
| 9:00 PM | 8:00 AM | same day |
Why people convert AWST to Chicago time
- Scheduling a call from AWST to Chicago: a 10:00 AM start in AWST lands at 9:00 PM in Chicago the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -13h gap: AWST and Chicago have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Chicago is 8:00 PM in AWST.
- Watching a live event or market open: AWST viewers need 8:00 PM in Chicago to catch a 9:00 AM start there, and 1:00 PM if the event is anchored to AWST.
- Always state the zone abbreviation, not just the hour. "3:00 PM AWST" is unambiguous; "3 PM" across a -13h gap is not.
- With a -13h gap there is no shared 9-to-5 window, so alternate the early start: one week AWST takes the early slot, the next week Chicago does.
- Chicago: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.
About AWST (Australian Western Standard Time)
Australian Western Standard Time (AWST) is used in Western Australia. WA does not observe daylight saving time, having rejected it in multiple referendums. Perth is the most remote major city in the world.
About CST (Central Standard Time)
Central Standard Time (CST) covers the central region of North America. It is the second most populous time zone in the US, including major cities like Chicago, Houston, and Dallas. CST is also used in Mexico City and much of Central America including Guatemala, Honduras, El Salvador, and Costa Rica. During summer, most of the US and Canada switch to Central Daylight Time (CDT, UTC-05:00), while Mexico and Central American countries generally remain on CST.
Best time to call between AWST and Chicago
With a -13h offset there is no overlap inside a normal 9 AM – 5 PM day. Chicago opens at 9:00 AM CDT, which is 8:00 PM in AWST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
AWST and Chicago have no shared working hours because of the -13h gap. Teams need to alternate early starts or rely on asynchronous handovers.
AWST is 13 hours behind Chicago (AWST UTC+08:00 → CDT UTC-05:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
AWST
Does not observe DST
Chicago
☀ Currently in DST
Standard: UTC-06:00 · DST: UTC-05:00
Clocks fall back on Sun, Nov 1, 2026
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between AWST and Chicago?
AWST (AWST, UTC+08:00) is 13 hours behind Chicago (CDT, UTC-05:00). The gap is currently -13h.
How do I convert AWST time to Chicago time?
Add -13h to AWST local time. For example, 9:00 AM in AWST is 8:00 PM in Chicago (previous day).
What time is it in Chicago right now?
Chicago uses CDT at UTC-05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -13h offset from AWST.
What is the best time to call Chicago from AWST?
There is no shared working-hours window because of the -13h gap. The closest option is 1:00 PM in AWST, which is 12:00 AM in Chicago.
Which is behind, AWST or Chicago?
AWST is 13 hours behind Chicago. When it is 12:00 PM in AWST it is 11:00 PM in Chicago.
Do AWST and Chicago use different time zones?
AWST uses AWST at UTC+08:00, while Chicago (USA) uses CDT at UTC-05:00. The IANA identifiers are Australia/Perth and America/Chicago.
Does daylight saving time affect the AWST–Chicago difference?
Yes at the moment: Chicago is on daylight saving time and AWST is not, so the -13h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share AWST's time zone?
AWST also covers Perth, Mandurah, Bunbury, Geraldton.
Which countries use AWST, AWST's zone?
AWST is used in Australia (Western Australia).
Is there a day difference between AWST and Chicago?
Sometimes. The -13h gap is large enough that 8:00 PM or later in AWST already falls on the in Chicago.
What is the time difference between AWST and Chicago?
Chicago is -13h from AWST.
What timezone is AWST in?
AWST operates on its local timezone.
What timezone is Chicago in?
Chicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.
What are the business hours in Chicago?
Standard business hours in Chicago are 8:00 AM - 5:00 PM CST.
Which countries use AWST (Australian Western Standard Time)?
AWST is used in Australia (Western Australia).
Does AWST observe daylight saving time?
No, AWST does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about AWST?
Western Australia does not observe daylight saving time. Perth is the most isolated major city in the world.
Which cities are in the CST timezone?
Major cities in the CST timezone include Chicago, Houston, Dallas, San Antonio, Mexico City, Austin, Winnipeg, Memphis.
What is the UTC offset for CST?
Central Standard Time (CST) is at UTC-06:00. During daylight saving time, it shifts to CDT.
What should I know about the CST timezone?
CST covers 20 US states fully or partially. Chicago and Houston are the two largest cities in the Central Time Zone.
When is it midnight in AWST, what time is it in Chicago?
When it is 12:00 AM (midnight) in AWST (AWST), it is -13h later in Chicago (CST).
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