Convert CT to AEST

Central Time (CT) to Australian Eastern Time (AEST)

When it's 12:00 PM in Chicago, it's 3:00 AM in Sydney (next day)

On Jan 1 – Mar 7, 2026; Nov 1, 2026 – Mar 13, 2027; Nov 7 – Dec 31, 2027: 5:00 AM in Sydney (next day).

On Mar 8 – Apr 4, 2026; Oct 4 – Oct 31, 2026; Mar 14 – Apr 3, 2027; Oct 3 – Nov 6, 2027: 4:00 AM in Sydney (next day).

CT UTC-6 / UTC-5 AEST UTC+11 / UTC+10 +15/+16/+17h

Interactive Converter

Pick any time and date to convert between CT and AEST.

Full 24-hour comparison. Business hours (9 AM -- 6 PM) are highlighted.

These times apply on all dates in 2026–2027 except:

Jan 1 – Mar 7, 2026; Nov 1, 2026 – Mar 13, 2027; Nov 7 – Dec 31, 2027: Sydney times are 2 hours later.
Mar 8 – Apr 4, 2026; Oct 4 – Oct 31, 2026; Mar 14 – Apr 3, 2027; Oct 3 – Nov 6, 2027: Sydney times are 1 hour later.

Top meeting times for teams in CT and AEST (9 AM -- 6 PM work hours, 1-hour meeting).

12a

12p

Chicago

Sydney

Overlap

Everyone available

Most available

Some overlap

Outside work hours

1 1:00 PM -- 2:00 PM in Chicago

Chicago: 1:00 PM Sydney: 4:00 AM

1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for Sydney.

5.9 / 10

2 2:00 PM -- 3:00 PM in Chicago

Chicago: 2:00 PM Sydney: 5:00 AM

1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for Sydney.

5.9 / 10

3 9:00 PM -- 10:00 PM in Chicago

Chicago: 9:00 PM Sydney: 12:00 PM

1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for Chicago.

5.9 / 10

These times apply on all dates in 2026–2027 except:

Jan 1 – Mar 7, 2026; Nov 1, 2026 – Mar 13, 2027; Nov 7 – Dec 31, 2027: Sydney times are 2 hours later.
Mar 8 – Apr 4, 2026; Oct 4 – Oct 31, 2026; Mar 14 – Apr 3, 2027; Oct 3 – Nov 6, 2027: Sydney times are 1 hour later.

The CT to AEST gap is +15h, +16h, or +17h, depending on daylight saving time. The table lists each period.

Dates	Chicago	Sydney	Difference
Jan 1 – Mar 7, 2026	UTC-6	UTC+11	+17h
Mar 8 – Apr 4, 2026	UTC-5	UTC+11	+16h
Apr 5 – Oct 3, 2026	UTC-5	UTC+10	+15h
Oct 4 – Oct 31, 2026	UTC-5	UTC+11	+16h
Nov 1, 2026 – Mar 13, 2027	UTC-6	UTC+11	+17h
Mar 14 – Apr 3, 2027	UTC-5	UTC+11	+16h
Apr 4 – Oct 2, 2027	UTC-5	UTC+10	+15h
Oct 3 – Nov 6, 2027	UTC-5	UTC+11	+16h
Nov 7 – Dec 31, 2027	UTC-6	UTC+11	+17h