CDT to AEST Converter
CDT to AEST, made simple. AEST is 15 hours ahead of CDT. Change the time or date in either card and the conversion follows along instantly.
Daylight saving notes
In the United States and Canada, daylight saving time runs from the second Sunday in March to the first Sunday in November. That affects Central Daylight Time (CDT).
In southern Australia, daylight saving time runs from the first Sunday in October to the first Sunday in April. That affects Australian Eastern Standard Time (AEST).
CDT to AEST conversion chart
For example, a 9:00 AM CDT meeting takes place at 12:00 AM AEST (+1 day). Concretely, when Chicago (CDT) and Sydney (AEST) set up a call, aEST is 15 hours ahead of CDT.
| CDT time | AEST time |
|---|---|
| 12:00 AM | 3:00 PM |
| 1:00 AM | 4:00 PM |
| 2:00 AM | 5:00 PM |
| 3:00 AM | 6:00 PM |
| 4:00 AM | 7:00 PM |
| 5:00 AM | 8:00 PM |
| 6:00 AM | 9:00 PM |
| 7:00 AM | 10:00 PM |
| 8:00 AM | 11:00 PM |
| 9:00 AM | 12:00 AM+1 day |
| 10:00 AM | 1:00 AM+1 day |
| 11:00 AM | 2:00 AM+1 day |
| 12:00 PM | 3:00 AM+1 day |
| 1:00 PM | 4:00 AM+1 day |
| 2:00 PM | 5:00 AM+1 day |
| 3:00 PM | 6:00 AM+1 day |
| 4:00 PM | 7:00 AM+1 day |
| 5:00 PM | 8:00 AM+1 day |
| 6:00 PM | 9:00 AM+1 day |
| 7:00 PM | 10:00 AM+1 day |
| 8:00 PM | 11:00 AM+1 day |
| 9:00 PM | 12:00 PM+1 day |
| 10:00 PM | 1:00 PM+1 day |
| 11:00 PM | 2:00 PM+1 day |
This chart uses the fixed CDT and AEST offsets; the live converter above follows current daylight saving.
Convert CDT to AEST Time Zone
Below are the answers people search for most when converting Central Daylight Time (CDT) to Australian Eastern Standard Time (AEST).
How does the CDT to AEST converter work?
It takes three quick steps:
- Click the CDT field on the left and pick the time you want to convert.
- The matching AEST time updates on the right automatically — there’s no button to press.
- Need a different day? Click the date field and the result follows, rolling over if it crosses midnight.
How many hours apart are CDT and AEST?
AEST is 15 hours ahead of CDT. In everyday terms, once you know the time on one side you just add 15 hours to get the other — so a call between Chicago and Sydney is always 15 hours apart.
What's the current time in AEST?
Right now the time in Australian Eastern Standard Time (AEST) is Tuesday, June 30, 2026 · 3:53:56 AM. It ticks every second, so you’re always looking at the live AEST clock.
And what time is it in CDT?
And in Central Daylight Time (CDT), it’s currently Monday, June 29, 2026 · 12:53:56 PM. Compare the two and the 15 hours gap is easy to see.
When is a good time to schedule a CDT to AEST meeting?
For example, a 9:00 AM CDT meeting takes place at 12:00 AM AEST (+1 day). The trick is to aim for a slot that lands inside normal working hours on both sides. Once you’ve found a time, hit Share on the converter to copy a link with the time built in — easy to send to a colleague. Juggling three or more zones? The meeting planner highlights the hours that overlap for everyone.
Does daylight saving time change the CDT–AEST difference?
The labels CDT and AEST are fixed offsets, so the result on this page is always exact. Both regions move their clocks for daylight saving on roughly the same weekends, so the 15 hours gap usually holds steady right through the year.
How accurate is this CDT to AEST conversion?
We don’t guess. CDT and AEST times are worked out from the official IANA time zone database, the trusted standard that operating systems use worldwide. Because daylight-saving rules and regional offsets do change over time, we track those updates rather than relying on a fixed number — which is exactly where many converters slip up.
Convert CDT to other time zones
- UTC Coordinated Universal Time
- GMT Greenwich Mean Time
- EST Eastern Standard Time
- EDT Eastern Daylight Time
- CST Central Standard Time
- MST Mountain Standard Time
- MDT Mountain Daylight Time
- PST Pacific Standard Time
- PDT Pacific Daylight Time
- AKST Alaska Standard Time
- AKDT Alaska Daylight Time
- HST Hawaii Standard Time
- AST Atlantic Standard Time
- ADT Atlantic Daylight Time
- NST Newfoundland Standard Time
- NDT Newfoundland Daylight Time
- BRT Brasília Time
- ART Argentina Time
- WET Western European Time
- WEST Western European Summer Time
- CET Central European Time
- CEST Central European Summer Time
- EET Eastern European Time
- EEST Eastern European Summer Time
- BST British Summer Time
- IST Irish Standard Time
- MSK Moscow Standard Time
- TRT Turkey Time
- WAT West Africa Time
- CAT Central Africa Time
- EAT East Africa Time
- SAST South Africa Standard Time
- GST Gulf Standard Time
- IST Israel Standard Time
- IDT Israel Daylight Time
- IST India Standard Time
- PKT Pakistan Standard Time
- BDT Bangladesh Standard Time
- ICT Indochina Time
- WIB Western Indonesian Time
- WITA Central Indonesian Time
- WIT Eastern Indonesian Time
- CST China Standard Time
- HKT Hong Kong Time
- SGT Singapore Time
- PHT Philippine Time
- JST Japan Standard Time
- KST Korea Standard Time
- AWST Australian Western Standard Time
- ACST Australian Central Standard Time
- ACDT Australian Central Daylight Time
- AEST Australian Eastern Standard Time
- AEDT Australian Eastern Daylight Time
- NZST New Zealand Standard Time
- NZDT New Zealand Daylight Time
Convert to AEST from other time zones
- UTC Coordinated Universal Time
- GMT Greenwich Mean Time
- EST Eastern Standard Time
- EDT Eastern Daylight Time
- CST Central Standard Time
- CDT Central Daylight Time
- MST Mountain Standard Time
- MDT Mountain Daylight Time
- PST Pacific Standard Time
- PDT Pacific Daylight Time
- AKST Alaska Standard Time
- AKDT Alaska Daylight Time
- HST Hawaii Standard Time
- AST Atlantic Standard Time
- ADT Atlantic Daylight Time
- NST Newfoundland Standard Time
- NDT Newfoundland Daylight Time
- BRT Brasília Time
- ART Argentina Time
- WET Western European Time
- WEST Western European Summer Time
- CET Central European Time
- CEST Central European Summer Time
- EET Eastern European Time
- EEST Eastern European Summer Time
- BST British Summer Time
- IST Irish Standard Time
- MSK Moscow Standard Time
- TRT Turkey Time
- WAT West Africa Time
- CAT Central Africa Time
- EAT East Africa Time
- SAST South Africa Standard Time
- GST Gulf Standard Time
- IST Israel Standard Time
- IDT Israel Daylight Time
- IST India Standard Time
- PKT Pakistan Standard Time
- BDT Bangladesh Standard Time
- ICT Indochina Time
- WIB Western Indonesian Time
- WITA Central Indonesian Time
- WIT Eastern Indonesian Time
- CST China Standard Time
- HKT Hong Kong Time
- SGT Singapore Time
- PHT Philippine Time
- JST Japan Standard Time
- KST Korea Standard Time
- AWST Australian Western Standard Time
- ACST Australian Central Standard Time
- ACDT Australian Central Daylight Time
- AEDT Australian Eastern Daylight Time
- NZST New Zealand Standard Time
- NZDT New Zealand Daylight Time
Frequently asked questions
How many hours ahead of CDT is AEST?
AEST is 15 hours ahead of CDT — a fixed 15 hours difference, since both are fixed-offset labels.
What time is it in AEST when it's 12:00 PM CDT?
When it's 12:00 PM (noon) CDT, it's 3:00 AM AEST the next day.
Do CDT or AEST use daylight saving time?
Central Daylight Time (CDT) observes daylight saving, alternating with CST; Australian Eastern Standard Time (AEST) observes daylight saving, alternating with AEDT.
Why might the real-world CDT–AEST difference change during the year?
The labels CDT and AEST are fixed offsets, so this converter is always exact. But Central Daylight Time's region switches between standard and summer time, so for part of the year you may actually want CST to AEST. Always check which label a region is currently using before you schedule.