Time Difference

Sydney vs Chicago Time Difference

Compare the current local time in Sydney, Australia and Chicago, United States.

Live local timeDST awareUTC offsets

From

Sydney

Australia

8:33 AM

Mon, Aug 17

UTC+10Australia/Sydney

Difference

15 hours

Swap

Chicago

United States

5:33 PM

Sun, Aug 16

UTC-5America/Chicago

Current difference

Chicago is currently 15 hours behind Sydney.

This difference is calculated using the current UTC offsets for both locations and automatically reflects daylight-saving changes.

24-hour comparison

Compare Sydney and Chicago hour by hour

See how a full local day in Sydney, Australia maps to Chicago, United States. TimeInOne automatically accounts for timezone offsets, date changes and daylight-saving transitions.

24-hour day

Working-hours overlap

There is no direct overlap between typical 9:00 AM–6:00 PM working hours in Sydney and Chicago on this date.

Sydney

Australia/Sydney

Chicago

America/Chicago

Availability

12:00 AM

Mon, Aug 17

9:00 AM

Previous day

Sun, Aug 16

Night

1:00 AM

Mon, Aug 17

10:00 AM

Previous day

Sun, Aug 16

Night

2:00 AM

Mon, Aug 17

11:00 AM

Previous day

Sun, Aug 16

Night

3:00 AM

Mon, Aug 17

12:00 PM

Previous day

Sun, Aug 16

Night

4:00 AM

Mon, Aug 17

1:00 PM

Previous day

Sun, Aug 16

Night

5:00 AM

Mon, Aug 17

2:00 PM

Previous day

Sun, Aug 16

Night

6:00 AM

Mon, Aug 17

3:00 PM

Previous day

Sun, Aug 16

Night

7:00 AM

Mon, Aug 17

4:00 PM

Previous day

Sun, Aug 16

Possible

8:00 AM

Mon, Aug 17

5:00 PM

Previous day

Sun, Aug 16

Possible

9:00 AM

Mon, Aug 17

6:00 PM

Previous day

Sun, Aug 16

Possible

10:00 AM

Mon, Aug 17

7:00 PM

Previous day

Sun, Aug 16

Possible

11:00 AM

Mon, Aug 17

8:00 PM

Previous day

Sun, Aug 16

Possible

12:00 PM

Mon, Aug 17

9:00 PM

Previous day

Sun, Aug 16

Night

1:00 PM

Mon, Aug 17

10:00 PM

Previous day

Sun, Aug 16

Night

2:00 PM

Mon, Aug 17

11:00 PM

Previous day

Sun, Aug 16

Night

3:00 PM

Mon, Aug 17

12:00 AM

Mon, Aug 17

Night

4:00 PM

Mon, Aug 17

1:00 AM

Mon, Aug 17

Night

5:00 PM

Mon, Aug 17

2:00 AM

Mon, Aug 17

Night

6:00 PM

Mon, Aug 17

3:00 AM

Mon, Aug 17

Night

7:00 PM

Mon, Aug 17

4:00 AM

Mon, Aug 17

Night

8:00 PM

Mon, Aug 17

5:00 AM

Mon, Aug 17

Night

9:00 PM

Mon, Aug 17

6:00 AM

Mon, Aug 17

Night

10:00 PM

Mon, Aug 17

7:00 AM

Mon, Aug 17

Night

11:00 PM

Mon, Aug 17

8:00 AM

Mon, Aug 17

Night

Working-hour labels use a general 9:00 AM–6:00 PM schedule. Individual schedules may differ.

On daylight-saving transition dates, a local day can contain 23 or 25 real hours instead of 24.

Call planning

Best time to call Chicago from Sydney

Compare typical business hours in Sydney, Australia and Chicago, United States to find a practical time for calls, meetings or international coordination.

No direct business-hours overlap

Flexible scheduling is recommended

Typical 9:00 AM–6:00 PM working hours do not overlap directly between Sydneyand Chicago. Consider an early-morning or evening call instead.

Other reasonable windows

Sydney

8:33 AM – 12:33 PM

Chicago

5:33 PM – 9:33 PM

Recommendations use typical 9:00 AM–6:00 PM business hours and a broader 7:00 AM–9:00 PM acceptable calling window. Individual schedules may differ.

Time difference explained

Sydney and Chicago time difference explained

Current local-time relationship

Chicago is currently 15 hours behind Sydney.

Sydney uses Australia/Sydney and currently has an offset of UTC+10. Chicago uses America/Chicago and currently has an offset of UTC-5.

Working-hours overlap

Typical 9:00 AM–6:00 PM business hours do not directly overlap, so calls may require an early-morning or evening schedule.

Because UTC offsets can change during the year, always check the selected date when planning an important international call or meeting.

Convert a specific time

Need more than the current difference?

Convert a specific date and local time between Sydney and Chicago.

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Local clocks

Explore each city

Current time in Sydney Current time in Chicago

FAQ

Sydney to Chicago time difference FAQ

Common questions about the current time difference, UTC offsets, daylight-saving changes and practical calling hours between Sydney and Chicago.

What is the time difference between Sydney and Chicago?

The current time difference between Sydney and Chicago is 15 hours. Chicago is currently 15 hours behind Sydney.

Is Chicago ahead of or behind Sydney?

Chicago is currently 15 hours behind Sydney.

What time is it in Chicago when it is 9:00 AM in Sydney?

Using the current UTC offsets, 9:00 AM in Sydney corresponds to 6:00 PM the previous day in Chicago. The exact difference can change when daylight-saving rules change.

What is the best time to call Chicago from Sydney?

Typical 9:00 AM–6:00 PM business hours do not directly overlap between Sydney and Chicago. An early-morning or evening call may be more practical.

Can the time difference between Sydney and Chicago change?

Yes. The time difference can change if Sydney or Chicago changes its UTC offset because of daylight-saving or other local time-zone rules. TimeInOne uses the IANA zones Australia/Sydney and America/Chicago for date-aware calculations.