CDT to Perth
+13hCDT
CDTSOURCEPerth
AWSTGreen rows indicate typical business hours (9 AM - 5 PM)
CDT and AWST on the World Map
The map below highlights the CDT (Central Daylight Time) and AWST (Australian Western Standard 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.
AWST – Australian Western Standard Time
UTC+08:00Australian Western Standard Time (AWST) is the time zone for Western Australia, 8 hours ahead of UTC.
- •Western Australia does not observe daylight saving time.
- •Perth is the most isolated major city in the world.
- •AWST is the same offset as China Standard Time and Singapore Time.
About Perth
WikipediaPerth operates on Australian Western Time (AWST), UTC+8 with no daylight saving. As Australia's mining capital, Perth coordinates with Asian markets.
Western Australia does not observe daylight saving time.
Time Conversion Guide: CDT to Perth
CDT runs on Central Daylight Time (CDT) at UTC-05:00. Perth runs on Australian Western Standard Time (AWST) at UTC+08:00. That puts CDT 13 hours ahead of Perth — a difference of +13h at the current offsets.
In practice, when it is 9:00 AM in CDT it is 10:00 PM in Perth. Midnight in CDT is 1:00 PM in Perth. Neither zone observes daylight saving time, so the offset between them stays constant all year.
CDT to Perth time conversion table
| CDT (CDT) | Perth (AWST) | Day |
|---|---|---|
| 12:00 AM | 1:00 PM | same day |
| 6:00 AM | 7:00 PM | same day |
| 7:00 AM | 8:00 PM | same day |
| 8:00 AM | 9:00 PM | same day |
| 9:00 AM | 10:00 PM | same day |
| 12:00 PM | 1:00 AM | next day |
| 3:00 PM | 4:00 AM | next day |
| 5:00 PM | 6:00 AM | next day |
| 6:00 PM | 7:00 AM | next day |
| 9:00 PM | 10:00 AM | next day |
Why people convert CDT to Perth time
- Scheduling a call from CDT to Perth: a 10:00 AM start in CDT lands at 11:00 PM in Perth, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +13h gap: CDT and Perth 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 Perth is 10:00 PM in CDT.
- Watching a live event or market open: CDT viewers need 10:00 PM in Perth to catch a 9:00 AM start there, and 11:00 AM if the event is anchored to CDT.
- Always state the zone abbreviation, not just the hour. "3:00 PM CDT" is unambiguous; "3 PM" across a +13h gap is not.
- With a +13h gap there is no shared 9-to-5 window, so alternate the early start: one week CDT takes the early slot, the next week Perth 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 AWST (Australian Western Standard Time)
Australian Western Standard Time (AWST) is used in Western Australia. WA does not observe daylight saving time, having rejected it in multiple referendums. Perth is the most remote major city in the world.
Best time to call between CDT and Perth
With a +13h offset there is no overlap inside a normal 9 AM – 5 PM day. Perth opens at 9:00 AM AWST, which is 10:00 PM in CDT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
CDT and Perth have no shared working hours because of the +13h gap. Teams need to alternate early starts or rely on asynchronous handovers.
CDT is 13 hours ahead of Perth (CDT UTC-05:00 → AWST UTC+08:00). 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
Perth
Does not observe DST
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 Perth?
CDT (CDT, UTC-05:00) is 13 hours ahead of Perth (AWST, UTC+08:00). The gap is currently +13h.
How do I convert CDT time to Perth time?
Add +13h to CDT local time. For example, 9:00 AM in CDT is 10:00 PM in Perth.
What time is it in Perth right now?
Perth uses AWST at UTC+08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +13h offset from CDT.
What is the best time to call Perth from CDT?
There is no shared working-hours window because of the +13h gap. The closest option is 1:00 PM in CDT, which is 2:00 AM in Perth.
Which is ahead, CDT or Perth?
CDT is 13 hours ahead of Perth. When it is 12:00 PM in CDT it is 1:00 AM in Perth.
Do CDT and Perth use different time zones?
CDT uses CDT at UTC-05:00, while Perth (Australia) uses AWST at UTC+08:00. The IANA identifiers are America/Chicago and Australia/Perth.
Does daylight saving time affect the CDT–Perth difference?
Neither zone observes daylight saving time, so the +13h offset between CDT and Perth 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 Perth?
Sometimes. The +13h gap is large enough that 8:00 PM or later in CDT already falls on the next day in Perth.
What is the time difference between CDT and Perth?
Perth is +13h from CDT.
What timezone is CDT in?
CDT operates on its local timezone.
What timezone is Perth in?
Perth operates on Australian Western Time (AWST), UTC+8 with no daylight saving. As Australia's mining capital, Perth coordinates with Asian markets.
What are the business hours in Perth?
Standard business hours in Perth are 9:00 AM - 5:00 PM AWST.
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 AWST timezone?
Major cities in the AWST timezone include Perth, Mandurah, Bunbury, Geraldton.
What is the UTC offset for AWST?
Australian Western Standard Time (AWST) is at UTC+08:00.
What should I know about the AWST timezone?
Western Australia does not observe daylight saving time. Perth is the most isolated major city in the world.
When is it midnight in CDT, what time is it in Perth?
When it is 12:00 AM (midnight) in CDT (CDT), it is +13h later in Perth (AWST).
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See every conversion from CDT →·See every conversion from Perth →