ICT to CDT
-12hICT
ICTSOURCECDT
CDTGreen rows indicate typical business hours (9 AM - 5 PM)
ICT and CDT on the World Map
The map below highlights the ICT (Indochina Time) and CDT (Central Daylight Time) timezone regions across the globe.
ICT – Indochina Time
UTC+07:00Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.
- •Bangkok is one of the most visited cities in the world.
- •ICT is 12 hours ahead of EST.
- •Thailand, Vietnam, and Cambodia all share ICT.
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.
ICT to CDT Time Difference – Complete Guide
ICT runs on Indochina Time (ICT) at UTC+07:00. CDT runs on Central Daylight Time (CDT) at UTC-05:00. That puts ICT 12 hours behind CDT — a difference of -12h at the current offsets.
In practice, when it is 9:00 AM in ICT it is 9:00 PM in CDT on the previous day. Midnight in ICT is 12:00 PM in CDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
ICT to CDT time conversion table
| ICT (ICT) | CDT (CDT) | Day |
|---|---|---|
| 12:00 AM | 12:00 PM | previous day |
| 6:00 AM | 6:00 PM | previous day |
| 7:00 AM | 7:00 PM | previous day |
| 8:00 AM | 8:00 PM | previous day |
| 9:00 AM | 9:00 PM | previous day |
| 12:00 PM | 12:00 AM | same day |
| 3:00 PM | 3:00 AM | same day |
| 5:00 PM | 5:00 AM | same day |
| 6:00 PM | 6:00 AM | same day |
| 9:00 PM | 9:00 AM | same day |
Why people convert ICT to CDT time
- Scheduling a call from ICT to CDT: a 10:00 AM start in ICT lands at 10:00 PM in CDT the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -12h gap: ICT and CDT 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 CDT is 9:00 PM in ICT.
- Watching a live event or market open: ICT viewers need 9:00 PM in CDT to catch a 9:00 AM start there, and 12:00 PM if the event is anchored to ICT.
- Always state the zone abbreviation, not just the hour. "3:00 PM ICT" is unambiguous; "3 PM" across a -12h gap is not.
- With a -12h gap there is no shared 9-to-5 window, so alternate the early start: one week ICT takes the early slot, the next week CDT does.
About ICT (Indochina Time)
Indochina Time (ICT) is used across Southeast Asia including Vietnam, Thailand, Laos, and Cambodia. Indonesia (Western time, WIB) also uses UTC+07:00. ICT does not observe daylight saving time.
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.
Best time to call between ICT and CDT
With a -12h offset there is no overlap inside a normal 9 AM – 5 PM day. CDT opens at 9:00 AM CDT, which is 9:00 PM in ICT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
ICT and CDT have no shared working hours because of the -12h gap. Teams need to alternate early starts or rely on asynchronous handovers.
ICT is 12 hours behind CDT (ICT UTC+07:00 → CDT UTC-05:00). 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
ICT
Does not observe DST
CDT
☀ Currently in DST
Standard: UTC-06:00 · DST: UTC-05:00
Clocks fall back on Sun, Nov 1, 2026
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 ICT and CDT?
ICT (ICT, UTC+07:00) is 12 hours behind CDT (CDT, UTC-05:00). The gap is currently -12h.
How do I convert ICT time to CDT time?
Add -12h to ICT local time. For example, 9:00 AM in ICT is 9:00 PM in CDT (previous day).
What time is it in CDT right now?
CDT uses CDT at UTC-05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -12h offset from ICT.
What is the best time to call CDT from ICT?
There is no shared working-hours window because of the -12h gap. The closest option is 1:00 PM in ICT, which is 1:00 AM in CDT.
Which is behind, ICT or CDT?
ICT is 12 hours behind CDT. When it is 12:00 PM in ICT it is 12:00 AM in CDT.
Does daylight saving time affect the ICT–CDT difference?
Neither zone observes daylight saving time, so the -12h offset between ICT and CDT is fixed all year.
Which other cities share ICT's time zone?
ICT also covers Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
Which countries use ICT, ICT's zone?
ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).
Is there a day difference between ICT and CDT?
Sometimes. The -12h gap is large enough that 8:00 PM or later in ICT already falls on the in CDT.
What is the time difference between ICT and CDT?
CDT is -12h from ICT.
What timezone is ICT in?
ICT operates on its local timezone.
What timezone is CDT in?
CDT operates on its local timezone.
Which countries use ICT (Indochina Time)?
ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).
Does ICT observe daylight saving time?
No, ICT does not observe daylight saving time and remains at UTC+07:00 year-round.
What are some interesting facts about ICT?
Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.
Which cities are in the CDT timezone?
Major cities in the CDT timezone include Chicago, Houston, Dallas, Austin, Winnipeg, Nashville.
What is the UTC offset for CDT?
Central Daylight Time (CDT) is at UTC-05:00. During daylight saving time, it shifts to CST.
What should I know about the CDT timezone?
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.
When is it midnight in ICT, what time is it in CDT?
When it is 12:00 AM (midnight) in ICT (ICT), it is -12h later in CDT (CDT).
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See every conversion from ICT →·See every conversion from CDT →