Australian Eastern Daylight Time (aedt) is used in Australia. The IANA timezone identifier is Australia/Sydney.

Central Standard Time (cst) is used in USA. The IANA timezone identifier is America/Chicago.

AEDT to CST Time Converter

Australian Eastern Daylight Time → Central Standard Time

AEDT = UTC+10CST = UTC-5

⚠️ CST is ambiguous — on this page it means Central Standard Time. It also refers to:

AEDT → China Standard Time (Beijing) ↗AEDT → Cuba Standard Time (Havana) ↗

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

CST (Chicago)

USA · -15h🔔 Public Holiday in 2d — Juneteenth National Independence Day

18:00-1 day

London

United Kingdom · -9h

00:00

New York

USA · -14h

19:00-1 day

Tokyo

Japan · -1h

08:00

Dubai

United Arab Emirates · -6h

03:00

AEDT (Sydney) to CST (Chicago) — exact time difference

AEDT (Sydney) is 15 hours ahead of CST (Chicago). When AEDT (Sydney) clocks hit noon, CST (Chicago) reads 21:00.

AEDT (Sydney) is in the Australia/Sydney timezone. CST (Chicago) is in America/Chicago. The difference is 15 hours.

Working hours overlap

AEDT (Sydney) and CST (Chicago) have no shared working hours under a standard 9:00–17:00 schedule. One side will always need to join at an off-hour.

When to schedule across time zones

Since AEDT (Sydney) and CST (Chicago) don't share working hours, these are the most practical options available.

07:00 Sydney / 16:00 Chicago⚡ One side off-hours

⚠️ 2h before working hours in Sydney

09:00 Sydney / 18:00 Chicago⚡ One side off-hours

⚠️ 2h after working hours in Chicago

06:00 Sydney / 15:00 Chicago⚡ One side off-hours

⚠️ 3h before working hours in Sydney

Based on standard 09:00–17:00 working hours in each location's local time.

Holiday calendar for both locations

⚡ Both locations have upcoming holidays, check availability before scheduling.

AEDT (Sydney)7 holidays

Aug 3Picnic Day

Sep 28King's Birthday

Oct 5Labour Day

Oct 5King's Birthday

Nov 3Melbourne Cup

CST (Chicago)8 holidays

Jun 19Juneteenth National Independence DaySOON

Jul 3Independence Day

Sep 7Labour Day

Oct 12Columbus Day

Oct 12Indigenous Peoples' Day

Working across AEDT (Sydney) and CST (Chicago)

Working across AEDT (Sydney) (Australia) and CST (Chicago) (USA) is a challenge — the 15-hour difference means no shared business hours window under a standard schedule. Flexibility from at least one side is required.

💡 Best practice for cross-timezone meetings

⚡

When AEDT (Sydney) is at 07:00, CST (Chicago) reads 16:00 — 2h before working hours in Sydney.

⚡

When AEDT (Sydney) is at 09:00, CST (Chicago) reads 18:00 — 2h after working hours in Chicago.

⚡

When AEDT (Sydney) is at 06:00, CST (Chicago) reads 15:00 — 3h before working hours in Sydney.

Since there is no natural overlap, the options above represent the most balanced compromise, minimizing out-of-hours inconvenience for both sides.

DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.

Get the Extension — Free →

Use the time slider above to find the exact equivalent time for any moment in AEDT (Sydney). The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.

AEDT (Sydney) ↔ CST (Chicago)

No overlap — one side will join outside working hours

AEDT (Sydney)

CST (Chicago)