CDT to AEDT
+16hCDT
CDTSOURCEAEDT
AEDTGreen rows indicate typical business hours (9 AM - 5 PM)
CDT and AEDT on the World Map
The map below highlights the CDT (Central Daylight Time) and AEDT (Australian Eastern Daylight Time) timezone regions across the globe.
CDT – Central Daylight Time
UTC-05:00Central Daylight Time (CDT) is the daylight saving offset in the Central Time Zone, 5 hours behind UTC.
- •CDT is the same offset as EST (UTC-05:00), which can cause confusion.
- •CDT runs from the second Sunday in March to the first Sunday in November.
AEDT – Australian Eastern Daylight Time
UTC+11:00Australian Eastern Daylight Time (AEDT, UTC+11:00) is the daylight saving period in south-eastern Australia, from October to April.
- •AEDT runs from the first Sunday in October to the first Sunday in April.
- •AEDT is one hour ahead of Australian Eastern Standard Time (AEST).
- •Queensland does not observe daylight saving, so Brisbane stays on AEST.
- •During AEDT, Sydney is 16 hours ahead of New York and 11 hours ahead of UTC.
Comparing Time Zones: CDT and AEDT
CDT runs on Central Daylight Time (CDT) at UTC-05:00. AEDT runs on Australian Eastern Daylight Time (AEDT) at UTC+11:00. That puts CDT 16 hours ahead of AEDT — a difference of +16h at the current offsets.
In practice, when it is 9:00 AM in CDT it is 1:00 AM in AEDT on the next day. Midnight in CDT is 4:00 PM in AEDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
CDT to AEDT time conversion table
| CDT (CDT) | AEDT (AEDT) | Day |
|---|---|---|
| 12:00 AM | 4:00 PM | same day |
| 6:00 AM | 10:00 PM | same day |
| 7:00 AM | 11:00 PM | same day |
| 8:00 AM | 12:00 AM | next day |
| 9:00 AM | 1:00 AM | next day |
| 12:00 PM | 4:00 AM | next day |
| 3:00 PM | 7:00 AM | next day |
| 5:00 PM | 9:00 AM | next day |
| 6:00 PM | 10:00 AM | next day |
| 9:00 PM | 1:00 PM | next day |
Why people convert CDT to AEDT time
- Scheduling a call from CDT to AEDT: a 10:00 AM start in CDT lands at 2:00 AM in AEDT the next day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +16h gap: CDT and AEDT have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in AEDT is 1:00 AM in CDT.
- Booking travel or deliveries: tracking AEDT local time against CDT keeps pickup windows and arrival estimates honest across the +16h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM CDT" is unambiguous; "3 PM" across a +16h gap is not.
- With a +16h gap there is no shared 9-to-5 window, so alternate the early start: one week CDT takes the early slot, the next week AEDT does.
About CDT (Central Daylight Time)
Central Daylight Time (CDT) is observed during summer months in the US and Canadian portions of the Central Time Zone. Clocks are moved forward by one hour, aligning with Eastern Standard Time (EST). Most of Mexico and Central America do not observe CDT, staying on CST year-round.
About AEDT (Australian Eastern Daylight Time)
Australian Eastern Daylight Time (AEDT) is the daylight saving period in south-eastern Australia, one hour ahead of Australian Eastern Standard Time (AEST, UTC+10:00). Because Australia is in the southern hemisphere, AEDT runs through the summer — from the first Sunday in October to the first Sunday in April — which is almost exactly the reverse of the European and North American schedules. New South Wales, Victoria, Tasmania and the Australian Capital Territory observe it; Queensland and the Northern Territory do not, so Brisbane stays on AEST year round while Sydney moves to AEDT. During AEDT, Sydney is 11 hours ahead of UTC and 16 hours ahead of New York.
Best time to call between CDT and AEDT
With a +16h offset there is no overlap inside a normal 9 AM – 5 PM day. AEDT opens at 9:00 AM AEDT, which is 1:00 AM in CDT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
CDT and AEDT have no shared working hours because of the +16h gap. Teams need to alternate early starts or rely on asynchronous handovers.
CDT is 16 hours ahead of AEDT (CDT UTC-05:00 → AEDT UTC+11:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
CDT
☀ Currently in DST
Standard: UTC-06:00 · DST: UTC-05:00
Clocks fall back on Sun, Nov 1, 2026
AEDT
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
⚠ These locations are currently in different DST states, so the time difference may change when clocks adjust.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between CDT and AEDT?
CDT (CDT, UTC-05:00) is 16 hours ahead of AEDT (AEDT, UTC+11:00). The gap is currently +16h.
How do I convert CDT time to AEDT time?
Add +16h to CDT local time. For example, 9:00 AM in CDT is 1:00 AM in AEDT (next day).
What time is it in AEDT right now?
AEDT uses AEDT at UTC+11:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +16h offset from CDT.
What is the best time to call AEDT from CDT?
There is no shared working-hours window because of the +16h gap. The closest option is 1:00 PM in CDT, which is 5:00 AM in AEDT.
Which is ahead, CDT or AEDT?
CDT is 16 hours ahead of AEDT. When it is 12:00 PM in CDT it is 4:00 AM in AEDT.
Does daylight saving time affect the CDT–AEDT difference?
Neither zone observes daylight saving time, so the +16h offset between CDT and AEDT is fixed all year.
Which other cities share CDT's time zone?
CDT also covers Chicago, Houston, Dallas, Austin, Winnipeg, Nashville.
Which countries use CDT, CDT's zone?
CDT is used in United States (Central), Canada (Manitoba).
Is there a day difference between CDT and AEDT?
Sometimes. The +16h gap is large enough that 8:00 PM or later in CDT already falls on the next day in AEDT.
What is the time difference between CDT and AEDT?
AEDT is +16h from CDT.
What timezone is CDT in?
CDT operates on its local timezone.
What timezone is AEDT in?
AEDT operates on its local timezone.
Which countries use CDT (Central Daylight Time)?
CDT is used in United States (Central), Canada (Manitoba).
Does CDT observe daylight saving time?
Yes, CDT switches to CST during summer months.
What are some interesting facts about CDT?
CDT is the same offset as EST (UTC-05:00), which can cause confusion. CDT runs from the second Sunday in March to the first Sunday in November.
Which cities are in the AEDT timezone?
Major cities in the AEDT timezone include Sydney, Melbourne, Canberra, Hobart, Newcastle.
What is the UTC offset for AEDT?
Australian Eastern Daylight Time (AEDT) is at UTC+11:00. During daylight saving time, it shifts to AEDT.
What should I know about the AEDT timezone?
AEDT runs from the first Sunday in October to the first Sunday in April. AEDT is one hour ahead of Australian Eastern Standard Time (AEST).
When is it midnight in CDT, what time is it in AEDT?
When it is 12:00 AM (midnight) in CDT (CDT), it is +16h later in AEDT (AEDT).
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See every conversion from CDT →·See every conversion from AEDT →