AEDT to CST Time Converter
CST is 16 hours behind AEDT. AEDT is UTC+11:00, and The US Central states are currently on CDT (UTC-5:00).
Best Time to Call Between AEDT and CST
Standard 9-to-5 hours in these two zones never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 2:00 PM AEDT, which is 3:00 PM to 10:00 PM CST.
both at work AEDT only CST only neither — hours along the strip are AEDT.
Common Times Converted
AEDT on the left, CST on the right.
AEDT to CST: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| AEDT | CST | Working hours |
|---|---|---|
| 12:00 AM | 8:00 AM prev day | — |
| 1:00 AM | 9:00 AM prev day | CST only |
| 2:00 AM | 10:00 AM prev day | CST only |
| 3:00 AM | 11:00 AM prev day | CST only |
| 4:00 AM | 12:00 PM prev day | CST only |
| 5:00 AM | 1:00 PM prev day | CST only |
| 6:00 AM | 2:00 PM prev day | CST only |
| 7:00 AM | 3:00 PM prev day | CST only |
| 8:00 AM | 4:00 PM prev day | CST only |
| 9:00 AM | 5:00 PM prev day | AEDT only |
| 10:00 AM | 6:00 PM prev day | AEDT only |
| 11:00 AM | 7:00 PM prev day | AEDT only |
| 12:00 PM | 8:00 PM prev day | AEDT only |
| 1:00 PM | 9:00 PM prev day | AEDT only |
| 2:00 PM | 10:00 PM prev day | AEDT only |
| 3:00 PM | 11:00 PM prev day | AEDT only |
| 4:00 PM | 12:00 AM | AEDT only |
| 5:00 PM | 1:00 AM | — |
| 6:00 PM | 2:00 AM | — |
| 7:00 PM | 3:00 AM | — |
| 8:00 PM | 4:00 AM | — |
| 9:00 PM | 5:00 AM | — |
| 10:00 PM | 6:00 AM | — |
| 11:00 PM | 7:00 AM | — |
What AEDT and CST Actually Are
AEDT — Australian Eastern Daylight Time
Sydney, Melbourne, Canberra, Hobart from October to April. Standing at UTC+11:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, April 4, 2027, to AEST. Brisbane and the rest of Queensland stay on AEST year-round, so they fall an hour behind Sydney each summer.
AEDT is the southern summer half of Eastern Australia, running roughly October to April — the opposite half of the year from northern hemisphere daylight time.
CST — Central Standard Time
Chicago, Houston, Dallas, Mexico City, Winnipeg. Standing at UTC-6:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to CST. CST also stands for China Standard Time (UTC+8) and Cuba Standard Time (UTC-5). This page covers the North American one.
Saskatchewan sits inside the Central zone but never changes its clocks, so it matches CST in winter and its neighbors' MDT in summer.
What This Means in Practice
The date changes mid-working-day
For 7 of the eight hours in a normal AEDT working day, the equivalent CST time falls on a different calendar date. Anything scheduled in that stretch needs the date checked as well as the time, or a Tuesday call quietly becomes a Wednesday one at the other end.
Both sides change clocks, on different dates
Both regions observe daylight saving but do not switch on the same day, so for a week or two each spring and fall the gap between them is an hour different from the rest of the year. Those short windows are where recurring invitations quietly break.
Nearly opposite sides of the clock
At 16 hours apart, one side's morning is the other side's night. Handing work over at the end of a shift usually beats trying to get both parties in the same call.
Major Cities in Each Zone
Cities on AEDT
Cities on CST
Frequently Asked Questions
What is the time difference between AEDT and CST?
CST is 16 hours behind AEDT. That is the live figure. Taken strictly as written, the gap between AEDT and CST is 17 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM AEDT in CST?
9:00 AM AEDT is 5:00 PM the previous day CST.
What are the best hours to schedule a call between AEDT and CST?
Standard business hours in these two zones do not overlap at all, so one side has to work outside the 9-to-5. The most workable window is 7:00 AM to 2:00 PM AEDT, which is 3:00 PM to 10:00 PM CST.
Does the difference between AEDT and CST change during the year?
Yes. Both regions observe daylight saving, and they do not switch on the same dates, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, April 4, 2027.
Does AEDT always mean Australian Eastern Daylight Time?
Brisbane and the rest of Queensland stay on AEST year-round, so they fall an hour behind Sydney each summer.
Does CST always mean Central Standard Time?
CST also stands for China Standard Time (UTC+8) and Cuba Standard Time (UTC-5). This page covers the North American one.