CST to AEST 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 AEST, 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. AEST (Australian Eastern Time) is used in New South Wales, Victoria, Tasmania, ACT; Queensland (Brisbane) all year.
CST here means North American Central Standard Time, not China Standard Time. Queensland stays on AEST all year. AEST (Australian Eastern Standard Time) is not in force right now: New South Wales is currently on AEDT. This page uses whichever name applies on the date you pick, so the numbers below say AEDT.
CST to AEST time conversion table
CST to AEST on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| CST | AEST | 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 AEST
Add 17 hours to the CST time to get AEST.
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 AEST
The time difference between CST and AEST 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: AEST is 17 hours ahead of CST.
- 8 Mar 2026 – 3 Apr 2026: AEST is 16 hours ahead of CST.
- 4 Apr 2026 – 2 Oct 2026: AEST is 15 hours ahead of CST.
- 3 Oct 2026 – 31 Oct 2026: AEST is 16 hours ahead of CST.
- 1 Nov 2026 – 30 Dec 2026: AEST is 17 hours ahead of CST.
CST and AEST 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).
- AEST 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 AEST
CST and AEST 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 AEST FAQ
What is the time difference between CST and AEST?
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 AEST?
9:00 AM CST is 2:00 AM AEDT (next day).
What is 12 PM (noon) CST in AEST?
12:00 PM CST is 5:00 AM AEDT (next day).
Is AEST ahead of or behind CST?
AEDT is 17 hours ahead of CST, so it is later in AEST 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 AEST change for daylight saving time?
Yes. AEST 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 AEST?
CST and AEST 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 AEST to CST
Convert CST to other time zones
Convert other time zones to AEST
Learn more
Updated 6 November 2026. Time zone data: IANA tz database.