Chicago & Sydney time difference

Sydney is 16 hours ahead of Chicago (17 hours in winter). Current time, 24-hour table, DST changes and the best time to call.

Sydney is 16 hours ahead of Chicago (17 hours in winter).

City Comparison Insights

  • Chicago — United States, America/Chicago (UTC-5), USD, Local time: 17:56
  • Sydney — Australia, Australia/Sydney (UTC+11), AUD, Local time: 09:56

Chicago to Sydney time conversion table (24 hours)

Each hour in Chicago with the matching time in Sydney. +1 is the next day, −1 the previous day.

ChicagoSydney
00:0016:00
01:0017:00
02:0018:00
03:0019:00
04:0020:00
05:0021:00
06:0022:00
07:0023:00
08:0000:00 +1
09:0001:00 +1
10:0002:00 +1
11:0003:00 +1
12:0004:00 +1
13:0005:00 +1
14:0006:00 +1
15:0007:00 +1
16:0008:00 +1
17:0009:00 +1
18:0010:00 +1
19:0011:00 +1
20:0012:00 +1
21:0013:00 +1
22:0014:00 +1
23:0015:00 +1

Best time to call or meet

Business hours (09:00–17:00) do not overlap. Best compromise: Chicago 16:00–18:00 = Sydney 08:00–10:00 (next day).

Daylight saving time (DST)

  • Summer time: 15 hours / Winter time: 17 hours.
  • From November 1, 2026, the difference becomes 17 hours.
  • Chicago changes on March 14, 2027 and Sydney on April 4, 2027, so between those dates the difference is 16 hours.
  • From October 3, 2027, the difference becomes 16 hours.
  • Chicago: UTC offset changes from UTC−5 to UTC−6 on November 1, 2026.
  • Sydney: UTC offset changes from UTC+11 to UTC+10 on April 4, 2027.

Frequently asked questions

What is the time difference between Chicago and Sydney?

Sydney is 16 hours ahead of Chicago (17 hours in winter).

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

When it is 9:00 in Chicago, it is 01:00 in Sydney (next day).

What is the best time to call from Chicago to Sydney?

Business hours (09:00–17:00) do not overlap. Best compromise: Chicago 16:00–18:00 = Sydney 08:00–10:00 (next day).

Does daylight saving time change the time difference between Chicago and Sydney?

Summer time: 15 hours / Winter time: 17 hours. From November 1, 2026, the difference becomes 17 hours.

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