AEST to CST Converter
CST is 15 hours behind AEST for most of the year. The gap changes for a few weeks a year because the two places switch to daylight saving time on different dates.
CST to AEST insteadTime difference between AEST and CST
CST is 15 hours behind AEST for most of the year.
- 2026: CST is 17 hours behind AEST from Jan 1 – Mar 7, 2026, Nov 1 – Dec 31, 2026.
- 2026: CST is 16 hours behind AEST from Mar 8 – Apr 4, 2026, Oct 4 – Oct 31, 2026.
- 2027: CST is 17 hours behind AEST from Jan 1 – Mar 13, 2027, Nov 7 – Dec 31, 2027.
- 2027: CST is 16 hours behind AEST from Mar 14 – Apr 3, 2027, Oct 3 – Nov 6, 2027.
AEST to CST conversion table
| AEST | CSTMost of the year | CSTJan 1 – Mar 7, 2026, Nov 1 – Dec 31, 2026 | CSTMar 8 – Apr 4, 2026, Oct 4 – Oct 31, 2026 |
|---|---|---|---|
| 12 AM | 9 AM−1 day | 7 AM−1 day | 8 AM−1 day |
| 1 AM | 10 AM−1 day | 8 AM−1 day | 9 AM−1 day |
| 2 AM | 11 AM−1 day | 9 AM−1 day | 10 AM−1 day |
| 3 AM | 12 PM−1 day | 10 AM−1 day | 11 AM−1 day |
| 4 AM | 1 PM−1 day | 11 AM−1 day | 12 PM−1 day |
| 5 AM | 2 PM−1 day | 12 PM−1 day | 1 PM−1 day |
| 6 AM | 3 PM−1 day | 1 PM−1 day | 2 PM−1 day |
| 7 AM | 4 PM−1 day | 2 PM−1 day | 3 PM−1 day |
| 8 AM | 5 PM−1 day | 3 PM−1 day | 4 PM−1 day |
| 9 AM | 6 PM−1 day | 4 PM−1 day | 5 PM−1 day |
| 10 AM | 7 PM−1 day | 5 PM−1 day | 6 PM−1 day |
| 11 AM | 8 PM−1 day | 6 PM−1 day | 7 PM−1 day |
| 12 PM | 9 PM−1 day | 7 PM−1 day | 8 PM−1 day |
| 1 PM | 10 PM−1 day | 8 PM−1 day | 9 PM−1 day |
| 2 PM | 11 PM−1 day | 9 PM−1 day | 10 PM−1 day |
| 3 PM | 12 AM | 10 PM−1 day | 11 PM−1 day |
| 4 PM | 1 AM | 11 PM−1 day | 12 AM |
| 5 PM | 2 AM | 12 AM | 1 AM |
| 6 PM | 3 AM | 1 AM | 2 AM |
| 7 PM | 4 AM | 2 AM | 3 AM |
| 8 PM | 5 AM | 3 AM | 4 AM |
| 9 PM | 6 AM | 4 AM | 5 AM |
| 10 PM | 7 AM | 5 AM | 6 AM |
| 11 PM | 8 AM | 6 AM | 7 AM |
Best time to meet
A regular 9 AM – 5 PM day doesn't overlap. If one side starts early or stays late (7 AM – 9 PM), you can meet 7 AM – 12 PM AEST (4 PM – 9 PM CST).
Frequently asked questions
What time is it in CST when it's 9 AM in AEST?
6 PM the previous day for most of the year. CST is 15 hours behind AEST.
How many hours is CST behind AEST?
Usually 15 hours. The gap changes for a few weeks a year because daylight saving time starts and ends on different dates: 2026: CST is 17 hours behind AEST from Jan 1 – Mar 7, 2026, Nov 1 – Dec 31, 2026. 2026: CST is 16 hours behind AEST from Mar 8 – Apr 4, 2026, Oct 4 – Oct 31, 2026.
Does AEST use daylight saving time?
Yes. Australian Eastern Time is UTC+11 (UTC+11) in January and UTC+10 (UTC+10) in July. Apr 4, 2026: clocks go back to UTC+10; Oct 3, 2026: clocks go forward to UTC+11.
Does CST use daylight saving time?
Yes. Central Time is UTC−6 (CST) in January and UTC−5 (CDT) in July. Mar 8, 2026: clocks go forward to UTC−5; Nov 1, 2026: clocks go back to UTC−6.
When is the best time to schedule a meeting between AEST and CST?
A regular 9 AM – 5 PM day doesn't overlap. If one side starts early or stays late (7 AM – 9 PM), you can meet 7 AM – 12 PM AEST (4 PM – 9 PM CST).
Which CST does this page use?
Here CST means US Central Time (UTC−6, CDT UTC−5 in summer), not China Standard Time. For China, see the Beijing pages.