CST to AEST Converter
AEST is 15 hours ahead of CST 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.
AEST to CST insteadTime difference between CST and AEST
AEST is 15 hours ahead of CST for most of the year.
- 2026: AEST is 17 hours ahead of CST from Jan 1 – Mar 7, 2026, Nov 1 – Dec 31, 2026.
- 2026: AEST is 16 hours ahead of CST from Mar 8 – Apr 4, 2026, Oct 4 – Oct 31, 2026.
- 2027: AEST is 17 hours ahead of CST from Jan 1 – Mar 13, 2027, Nov 7 – Dec 31, 2027.
- 2027: AEST is 16 hours ahead of CST from Mar 14 – Apr 3, 2027, Oct 3 – Nov 6, 2027.
CST to AEST conversion table
| CST | AESTMost of the year | AESTJan 1 – Mar 7, 2026, Nov 1 – Dec 31, 2026 | AESTMar 8 – Apr 4, 2026, Oct 4 – Oct 31, 2026 |
|---|---|---|---|
| 12 AM | 3 PM | 5 PM | 4 PM |
| 1 AM | 4 PM | 6 PM | 5 PM |
| 2 AM | 5 PM | 7 PM | 6 PM |
| 3 AM | 6 PM | 8 PM | 7 PM |
| 4 AM | 7 PM | 9 PM | 8 PM |
| 5 AM | 8 PM | 10 PM | 9 PM |
| 6 AM | 9 PM | 11 PM | 10 PM |
| 7 AM | 10 PM | 12 AM+1 day | 11 PM |
| 8 AM | 11 PM | 1 AM+1 day | 12 AM+1 day |
| 9 AM | 12 AM+1 day | 2 AM+1 day | 1 AM+1 day |
| 10 AM | 1 AM+1 day | 3 AM+1 day | 2 AM+1 day |
| 11 AM | 2 AM+1 day | 4 AM+1 day | 3 AM+1 day |
| 12 PM | 3 AM+1 day | 5 AM+1 day | 4 AM+1 day |
| 1 PM | 4 AM+1 day | 6 AM+1 day | 5 AM+1 day |
| 2 PM | 5 AM+1 day | 7 AM+1 day | 6 AM+1 day |
| 3 PM | 6 AM+1 day | 8 AM+1 day | 7 AM+1 day |
| 4 PM | 7 AM+1 day | 9 AM+1 day | 8 AM+1 day |
| 5 PM | 8 AM+1 day | 10 AM+1 day | 9 AM+1 day |
| 6 PM | 9 AM+1 day | 11 AM+1 day | 10 AM+1 day |
| 7 PM | 10 AM+1 day | 12 PM+1 day | 11 AM+1 day |
| 8 PM | 11 AM+1 day | 1 PM+1 day | 12 PM+1 day |
| 9 PM | 12 PM+1 day | 2 PM+1 day | 1 PM+1 day |
| 10 PM | 1 PM+1 day | 3 PM+1 day | 2 PM+1 day |
| 11 PM | 2 PM+1 day | 4 PM+1 day | 3 PM+1 day |
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 4 PM – 9 PM CST (7 AM – 12 PM AEST).
Frequently asked questions
What time is it in AEST when it's 9 AM in CST?
12 AM the next day for most of the year. AEST is 15 hours ahead of CST.
How many hours is AEST ahead of CST?
Usually 15 hours. The gap changes for a few weeks a year because daylight saving time starts and ends on different dates: 2026: AEST is 17 hours ahead of CST from Jan 1 – Mar 7, 2026, Nov 1 – Dec 31, 2026. 2026: AEST is 16 hours ahead of CST from Mar 8 – Apr 4, 2026, Oct 4 – Oct 31, 2026.
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.
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.
When is the best time to schedule a meeting between CST and AEST?
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 4 PM – 9 PM CST (7 AM – 12 PM AEST).
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.