Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

Chicago to Bangkok

+12h

Chicago

CDTSOURCE

USA · UTC-05:00☀ DST active

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Bangkok

ICT

Thailand · UTC+07:00

HH12

MM00

(next day)00:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Chicago

Bangkok

12:00 AM

12:00 PM

2:00 AM

2:00 PM

4:00 AM

4:00 PM

6:00 AM

6:00 PM

8:00 AM

8:00 PM

10:00 AM

10:00 PM

12:00 PM

12:00 AM+1

2:00 PM

2:00 AM+1

4:00 PM

4:00 AM+1

6:00 PM

6:00 AM+1

8:00 PM

8:00 AM+1

10:00 PM

10:00 AM+1

Green rows indicate typical business hours (9 AM - 5 PM)

CDT and ICT on the World Map

The map below highlights the CDT (Central Standard Time) and ICT (Indochina Time) timezone regions across the globe.

CDT Zone

→

ICT Zone

Explore all world timezones interactively →

CST – Central Standard Time

UTC-06:00

Central Standard Time (CST) is the time zone for the central United States, Canada, and Mexico, 6 hours behind UTC.

Countries in CST

United States (Central)Canada (Manitoba, Saskatchewan)MexicoGuatemalaHondurasEl SalvadorCosta RicaNicaraguaBelize

Major Cities in CST

ChicagoHoustonDallasSan AntonioMexico CityAustinWinnipegMemphisMilwaukeeNashvilleKansas CityNew OrleansMinneapolisGuatemala City

Key Facts about CST

•CST covers 20 US states fully or partially.
•Chicago and Houston are the two largest cities in the Central Time Zone.
•Mexico City, one of the world's most populous cities, operates on CST.
•CST is 1 hour behind EST and 2 hours ahead of PST.

Daylight Saving:Yes – switches to CDT

Learn more about CST on Wikipedia

ICT – Indochina Time

UTC+07:00

Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.

Countries in ICT

ThailandVietnamCambodiaLaosIndonesia (WIB)

Major Cities in ICT

BangkokHo Chi Minh CityHanoiJakartaPhnom PenhVientiane

Key Facts about ICT

•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.

Daylight Saving:No – UTC+07:00 year-round

Learn more about ICT on Wikipedia

About Chicago

Wikipedia

Chicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.

Population:2.7 million

Metro:9.5 million

Business Hours:8:00 AM - 5:00 PM CST

Currency:USD ($)

Stock Exchange:CME (Chicago Mercantile Exchange), CBOE

Key Landmarks

Willis TowerMillennium ParkCloud Gate (The Bean)Navy PierArt Institute of Chicago

Did You Know?

The Chicago Board of Trade is the world's oldest futures and options exchange.

Learn more about CDT timezone →

About Bangkok

Wikipedia

Bangkok operates on Indochina Time (ICT), UTC+7. As Southeast Asia's largest economy hub, Bangkok bridges East Asian and South Asian business hours.

Population:8.3 million

Metro:14.6 million

Business Hours:8:30 AM - 5:30 PM ICT

Currency:THB (฿)

Stock Exchange:SET (Stock Exchange of Thailand)

Key Landmarks

Grand PalaceWat ArunWat PhoChatuchak MarketKhao San Road

Did You Know?

Bangkok is one of the world's most visited cities, with over 22 million visitors annually.

Learn more about ICT timezone →

Chicago to Bangkok Time Difference – Complete Guide

Chicago runs on Central Daylight Time (CDT) at UTC-05:00, currently observing daylight saving time. Bangkok runs on Indochina Time (ICT) at UTC+07:00. That puts Chicago 12 hours ahead of Bangkok — a difference of +12h at the current offsets.

In practice, when it is 9:00 AM in Chicago it is 9:00 PM in Bangkok. Midnight in Chicago is 12:00 PM in Bangkok.Chicago observes daylight saving time while Bangkok does not, so the gap narrows or widens by an hour part of the year.

Chicago to Bangkok time conversion table

Chicago (CDT)	Bangkok (ICT)	Day
12:00 AM	12:00 PM	same day
6:00 AM	6:00 PM	same day
7:00 AM	7:00 PM	same day
8:00 AM	8:00 PM	same day
9:00 AM	9:00 PM	same day
12:00 PM	12:00 AM	next day
3:00 PM	3:00 AM	next day
5:00 PM	5:00 AM	next day
6:00 PM	6:00 AM	next day
9:00 PM	9:00 AM	next day

Why people convert Chicago to Bangkok time

Scheduling a call from Chicago to Bangkok: a 10:00 AM start in Chicago lands at 10:00 PM in Bangkok, so you can confirm the slot without doing the arithmetic yourself.
Handling a +12h gap: Chicago and Bangkok 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 Bangkok is 9:00 PM in Chicago.
Keeping family and friends in sync: knowing that 8:00 PM in Chicago is 8:00 AM in Bangkok makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM CDT" 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 Chicago takes the early slot, the next week Bangkok does.
Chicago: Clocks fall back on Sun, Nov 1, 2026. Re-check this page after that date because the offset changes and so does the +12h gap.

About CST (Central Standard Time)

Central Standard Time (CST) covers the central region of North America. It is the second most populous time zone in the US, including major cities like Chicago, Houston, and Dallas. CST is also used in Mexico City and much of Central America including Guatemala, Honduras, El Salvador, and Costa Rica. During summer, most of the US and Canada switch to Central Daylight Time (CDT, UTC-05:00), while Mexico and Central American countries generally remain on CST.

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.

Best time to call between Chicago and Bangkok

With a +12h offset there is no overlap inside a normal 9 AM – 5 PM day. Bangkok opens at 9:00 AM ICT, which is 9:00 PM in Chicago, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

Chicago and Bangkok have no shared working hours because of the +12h gap. Teams need to alternate early starts or rely on asynchronous handovers.

Chicago is 12 hours ahead of Bangkok (CDT UTC-05:00 → ICT UTC+07:00). 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

Chicago

☀ Currently in DST

Standard: UTC-06:00 · DST: UTC-05:00

Clocks fall back on Sun, Nov 1, 2026

Bangkok

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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between Chicago and Bangkok?

Chicago (CDT, UTC-05:00) is 12 hours ahead of Bangkok (ICT, UTC+07:00). The gap is currently +12h.

How do I convert Chicago time to Bangkok time?

Add +12h to Chicago local time. For example, 9:00 AM in Chicago is 9:00 PM in Bangkok.

What time is it in Bangkok right now?

Bangkok uses ICT at UTC+07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +12h offset from Chicago.

What is the best time to call Bangkok from Chicago?

There is no shared working-hours window because of the +12h gap. The closest option is 1:00 PM in Chicago, which is 1:00 AM in Bangkok.

Which is ahead, Chicago or Bangkok?

Chicago is 12 hours ahead of Bangkok. When it is 12:00 PM in Chicago it is 12:00 AM in Bangkok.

Do Chicago and Bangkok use different time zones?

Chicago (USA) uses CDT at UTC-05:00, while Bangkok (Thailand) uses ICT at UTC+07:00. The IANA identifiers are America/Chicago and Asia/Bangkok.

Does daylight saving time affect the Chicago–Bangkok difference?

Yes at the moment: Chicago is on daylight saving time and Bangkok is not, so the +12h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share Chicago's time zone?

CDT also covers Chicago, Houston, Dallas, San Antonio, Mexico City, Austin, Winnipeg, Memphis and 6 more.

Which countries use CDT, Chicago's zone?

CDT is used in United States (Central), Canada (Manitoba, Saskatchewan), Mexico, Guatemala, Honduras, El Salvador, Costa Rica, Nicaragua and 1 more.

Is there a day difference between Chicago and Bangkok?

Sometimes. The +12h gap is large enough that 8:00 PM or later in Chicago already falls on the next day in Bangkok.

What is the time difference between Chicago and Bangkok?

Bangkok is +12h from Chicago.

What timezone is Chicago in?

Chicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.

What timezone is Bangkok in?

Bangkok operates on Indochina Time (ICT), UTC+7. As Southeast Asia's largest economy hub, Bangkok bridges East Asian and South Asian business hours.

What are the business hours in Chicago?

Standard business hours in Chicago are 8:00 AM - 5:00 PM CST.

What are the business hours in Bangkok?

Standard business hours in Bangkok are 8:30 AM - 5:30 PM ICT.

What is the best time to schedule a call between Chicago and Bangkok?

The best overlap for a call is when both cities are in business hours. Chicago works 8:00 AM - 5:00 PM CST and Bangkok works 8:30 AM - 5:30 PM ICT (+12h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Chicago and Bangkok?

Chicago uses USD ($) while Bangkok uses THB (฿). Check current exchange rates when planning travel or business between these cities.

How do Chicago and Bangkok compare in size?

Chicago has a population of approximately 2.7 million (metro: 9.5 million), while Bangkok has approximately 8.3 million (metro: 14.6 million).

What are the major landmarks in Chicago and Bangkok?

Chicago is known for Willis Tower, Millennium Park, Cloud Gate (The Bean). Bangkok is famous for Grand Palace, Wat Arun, Wat Pho.

Do Chicago and Bangkok have stock exchanges?

Yes. Chicago has the CME (Chicago Mercantile Exchange), CBOE and Bangkok has the SET (Stock Exchange of Thailand). The +12h time difference affects trading hour overlaps between these exchanges.