Australian Eastern Daylight Time → Central Daylight Time
AEDT = UTC+10CDT = UTC-5
AEDT (Sydney) ↔ CDT (Chicago)
No overlap — one side will join outside working hours
AEDT (Sydney)
CDT (Chicago)
00:00
09:00-1dWorking
01:00
10:00-1dWorking
02:00
11:00-1dWorking
03:00
12:00-1dWorking
04:00
13:00-1dWorking
05:00
14:00-1dWorking
06:00
15:00-1dWorking
07:00
16:00-1dWorking
08:00
17:00-1d
09:00Working
18:00-1doff
10:00Working
19:00-1doff
11:00Working
20:00-1doff
12:00Working
21:00-1doff
13:00Working
22:00-1doff
14:00Working
23:00-1doff
15:00Working
00:00off
16:00Working
01:00off
17:00
02:00
18:00
03:00
19:00
04:00
20:00
05:00
21:00
06:00
22:00
07:00
23:00
08:00
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between aedt and cdt?
Australian Eastern Daylight Time (aedt) is UTC+10 and Central Daylight Time (cdt) is UTC-5. The difference between them is 15 hours.
Where is aedt used?
Australian Eastern Daylight Time (aedt) is used in Australia and surrounding regions. The IANA timezone identifier is Australia/Sydney.
Where is cdt used?
Central Daylight Time (cdt) is used in USA and surrounding regions. The IANA timezone identifier is America/Chicago.
How do I convert aedt to cdt?
Use the interactive converter above. Drag the time slider to any aedt time and the cdt equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
AEDT (Sydney) to CDT (Chicago) — exact time difference
AEDT (Sydney) is 15 hours ahead of CDT (Chicago). When it's noon in AEDT (Sydney), it's 21:00 in CDT (Chicago).
AEDT (Sydney) is in the Australia/Sydney timezone. CDT (Chicago) is in America/Chicago. The difference is 15 hours.
Working hours overlap
AEDT (Sydney) and CDT (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.
Recommended meeting windows
Since AEDT (Sydney) and CDT (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.
Public holidays this year
⚡ Upcoming holidays in both locations, confirm with your contact before booking.
AEDT (Sydney)7 holidays
Aug 3Picnic Day
Sep 28King's Birthday
Oct 5Labour Day
Oct 5King's Birthday
Nov 3Melbourne Cup
CDT (Chicago)8 holidays
Jun 19Juneteenth National Independence DaySOON
Jul 3Independence Day
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
AEDT (Sydney) and CDT (Chicago) — practical scheduling
Working across AEDT (Sydney) (Australia) and CDT (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.
💡 Practical scheduling guidelines
⚡
When AEDT (Sydney) is at 07:00, CDT (Chicago) reads 16:00 — 2h before working hours in Sydney.
⚡
When AEDT (Sydney) is at 09:00, CDT (Chicago) reads 18:00 — 2h after working hours in Chicago.
⚡
When AEDT (Sydney) is at 06:00, CDT (Chicago) reads 15:00 — 3h before working hours in Sydney.
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
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.
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.
