CST to Sydney Time Converter
AEDT is 17 hours ahead of CST. 9:00 AM CST = 2:00 AM AEDT (next day).
AEDT is 17 hours ahead of CST at the moment. To convert CST to Sydney Time, add 17 hours to the CST time: 9:00 AM CST = 2:00 AM AEDT (next day).
CST (Central Time) is used in Chicago, Dallas, Houston, Minneapolis, New Orleans, Winnipeg; Mexico City and Central America use UTC−6 all year. Sydney Time (Sydney time) is used in Sydney, Australia.
CST here means North American Central Standard Time, not China Standard Time.
CST to Sydney Time time conversion table
CST to Sydney Time on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| CST | Sydney Time | Day |
|---|---|---|
| 12:00 AM CST | 5:00 PM AEDT | — |
| 1:00 AM CST | 6:00 PM AEDT | — |
| 2:00 AM CST | 7:00 PM AEDT | — |
| 3:00 AM CST | 8:00 PM AEDT | — |
| 4:00 AM CST | 9:00 PM AEDT | — |
| 5:00 AM CST | 10:00 PM AEDT | night |
| 6:00 AM CST | 11:00 PM AEDT | night |
| 7:00 AM CST | 12:00 AM AEDT | next day |
| 8:00 AM CST | 1:00 AM AEDT | next day |
| 9:00 AM CST | 2:00 AM AEDT | next day |
| 10:00 AM CST | 3:00 AM AEDT | next day |
| 11:00 AM CST | 4:00 AM AEDT | next day |
| 12:00 PM CST | 5:00 AM AEDT | next day |
| 1:00 PM CST | 6:00 AM AEDT | next day |
| 2:00 PM CST | 7:00 AM AEDT | next day |
| 3:00 PM CST | 8:00 AM AEDT | next day |
| 4:00 PM CST | 9:00 AM AEDT | work hours |
| 5:00 PM CST | 10:00 AM AEDT | next day |
| 6:00 PM CST | 11:00 AM AEDT | next day |
| 7:00 PM CST | 12:00 PM AEDT | next day |
| 8:00 PM CST | 1:00 PM AEDT | next day |
| 9:00 PM CST | 2:00 PM AEDT | next day |
| 10:00 PM CST | 3:00 PM AEDT | next day |
| 11:00 PM CST | 4:00 PM AEDT | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert CST to Sydney Time
Add 17 hours to the CST time to get Sydney Time.
Example: 9:00 AM CST = 2:00 AM AEDT (next day).
Across midnight: 10:00 PM CST = 3:00 PM AEDT (next day). The date changes, so always check the day as well as the hour.
Time difference between CST and Sydney Time
The time difference between CST and Sydney Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 31 Dec 2025 – 7 Mar 2026: Sydney Time is 17 hours ahead of CST.
- 8 Mar 2026 – 3 Apr 2026: Sydney Time is 16 hours ahead of CST.
- 4 Apr 2026 – 2 Oct 2026: Sydney Time is 15 hours ahead of CST.
- 3 Oct 2026 – 31 Oct 2026: Sydney Time is 16 hours ahead of CST.
- 1 Nov 2026 – 30 Dec 2026: Sydney Time is 17 hours ahead of CST.
CST and Sydney Time during daylight saving time
- CST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from CST (UTC−6) to CDT (UTC−5).
- Sydney Time next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from AEDT (UTC+11) to AEST (UTC+10).
Best time for a meeting between CST and Sydney Time
CST and Sydney Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 2:00 PM CST, which is 7:00 AM AEDT.
CST to Sydney Time FAQ
What is the time difference between CST and Sydney Time?
Right now AEDT is 17 hours ahead of CST. The gap changes 5 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM CST in Sydney Time?
9:00 AM CST is 2:00 AM AEDT (next day).
What is 12 PM (noon) CST in Sydney Time?
12:00 PM CST is 5:00 AM AEDT (next day).
Is Sydney Time ahead of or behind CST?
AEDT is 17 hours ahead of CST, so it is later in Sydney Time than in CST.
Does CST change for daylight saving time?
Yes. CST next changes on 14 Mar 2027, when clocks go forward one hour from CST to CDT.
Does Sydney Time change for daylight saving time?
Yes. Sydney Time next changes on 4 Apr 2027, when clocks go back one hour from AEDT to AEST.
What is the best time for a meeting between CST and Sydney Time?
CST and Sydney Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 2:00 PM CST, which is 7:00 AM AEDT.
Is CT the same as CST?
CST is the winter (standard) name of Central Time (CT). From March to November the same clocks are called CDT. This converter always uses the one in force on the date you choose.
Related conversions
Convert Sydney Time to CST
Convert CST to other time zones
Convert other time zones to Sydney Time
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.