Chicago to Hong Kong
+13hChicago
CDTSOURCEHong Kong
HKTGreen rows indicate typical business hours (9 AM - 5 PM)
CDT and HKT on the World Map
The map below highlights the CDT (Central Standard Time) and HKT (Hong Kong Time) timezone regions across the globe.
CST – Central Standard Time
UTC-06:00Central Standard Time (CST) is the time zone for the central United States, Canada, and Mexico, 6 hours behind UTC.
- •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.
HKT – Hong Kong Time
UTC+08:00Hong Kong Time (HKT, UTC+08:00) is the time zone for Hong Kong, 8 hours ahead of UTC.
- •Hong Kong does not observe daylight saving time and has kept UTC+08:00 since 1979.
- •HKT shares its offset with China Standard Time, Singapore Time and Philippine Time.
- •The Hong Kong Stock Exchange opens at 09:30 HKT.
- •Hong Kong Time does not change with the seasons, so its gap to other zones is fixed.
About Chicago
WikipediaChicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.
The Chicago Board of Trade is the world's oldest futures and options exchange.
About Hong Kong
WikipediaHong Kong Time (HKT) is UTC+8 with no daylight saving. As a major financial gateway to China, Hong Kong trading hours overlap with European morning sessions.
The city has one of the world's most efficient and affordable public transit systems.
Understanding the +13h Gap: Chicago vs Hong Kong
Chicago runs on Central Daylight Time (CDT) at UTC-05:00, currently observing daylight saving time. Hong Kong runs on Hong Kong Standard Time (HKT) at UTC+08:00. That puts Chicago 13 hours ahead of Hong Kong — a difference of +13h at the current offsets.
In practice, when it is 9:00 AM in Chicago it is 10:00 PM in Hong Kong. Midnight in Chicago is 1:00 PM in Hong Kong.Chicago observes daylight saving time while Hong Kong does not, so the gap narrows or widens by an hour part of the year.
Chicago to Hong Kong time conversion table
| Chicago (CDT) | Hong Kong (HKT) | 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 Chicago to Hong Kong time
- Scheduling a call from Chicago to Hong Kong: a 10:00 AM start in Chicago lands at 11:00 PM in Hong Kong, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +13h gap: Chicago and Hong Kong 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 Hong Kong is 10:00 PM in Chicago.
- Watching a live event or market open: Chicago viewers need 10:00 PM in Hong Kong to catch a 9:00 AM start there, and 11:00 AM if the event is anchored to Chicago.
- 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 Chicago takes the early slot, the next week Hong Kong 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 +13h 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 HKT (Hong Kong Time)
Hong Kong Time (HKT) is fixed at UTC+08:00 all year and does not observe daylight saving time. Hong Kong last used summer time in 1979 and has kept a single offset since. HKT shares the UTC+08:00 offset with China Standard Time, Singapore Time, Malaysian Time, Philippine Time and Australian Western Standard Time, but is listed separately because Hong Kong maintains its own timekeeping authority. As a major financial centre, Hong Kong's trading hours set the rhythm for markets across Asia, opening at 09:30 HKT which is 01:30 in London and 20:30 the previous evening in New York.
Best time to call between Chicago and Hong Kong
With a +13h offset there is no overlap inside a normal 9 AM – 5 PM day. Hong Kong opens at 9:00 AM HKT, which is 10:00 PM in Chicago, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Chicago and Hong Kong have no shared working hours because of the +13h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Chicago is 13 hours ahead of Hong Kong (CDT UTC-05:00 → HKT 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
Chicago
☀ Currently in DST
Standard: UTC-06:00 · DST: UTC-05:00
Clocks fall back on Sun, Nov 1, 2026
Hong Kong
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 Chicago and Hong Kong?
Chicago (CDT, UTC-05:00) is 13 hours ahead of Hong Kong (HKT, UTC+08:00). The gap is currently +13h.
How do I convert Chicago time to Hong Kong time?
Add +13h to Chicago local time. For example, 9:00 AM in Chicago is 10:00 PM in Hong Kong.
What time is it in Hong Kong right now?
Hong Kong uses HKT 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 Chicago.
What is the best time to call Hong Kong from Chicago?
There is no shared working-hours window because of the +13h gap. The closest option is 1:00 PM in Chicago, which is 2:00 AM in Hong Kong.
Which is ahead, Chicago or Hong Kong?
Chicago is 13 hours ahead of Hong Kong. When it is 12:00 PM in Chicago it is 1:00 AM in Hong Kong.
Do Chicago and Hong Kong use different time zones?
Chicago (USA) uses CDT at UTC-05:00, while Hong Kong (Hong Kong) uses HKT at UTC+08:00. The IANA identifiers are America/Chicago and Asia/Hong_Kong.
Does daylight saving time affect the Chicago–Hong Kong difference?
Yes at the moment: Chicago is on daylight saving time and Hong Kong is not, so the +13h 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 Hong Kong?
Sometimes. The +13h gap is large enough that 8:00 PM or later in Chicago already falls on the next day in Hong Kong.
What is the time difference between Chicago and Hong Kong?
Hong Kong is +13h 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 Hong Kong in?
Hong Kong Time (HKT) is UTC+8 with no daylight saving. As a major financial gateway to China, Hong Kong trading hours overlap with European morning sessions.
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 Hong Kong?
Standard business hours in Hong Kong are 9:00 AM - 6:00 PM HKT.
What is the best time to schedule a call between Chicago and Hong Kong?
The best overlap for a call is when both cities are in business hours. Chicago works 8:00 AM - 5:00 PM CST and Hong Kong works 9:00 AM - 6:00 PM HKT (+13h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Chicago and Hong Kong?
Chicago uses USD ($) while Hong Kong uses HKD (HK$). Check current exchange rates when planning travel or business between these cities.
How do Chicago and Hong Kong compare in size?
Chicago has a population of approximately 2.7 million (metro: 9.5 million), while Hong Kong has approximately 7.5 million (metro: 7.5 million).
What are the major landmarks in Chicago and Hong Kong?
Chicago is known for Willis Tower, Millennium Park, Cloud Gate (The Bean). Hong Kong is famous for Victoria Peak, Tian Tan Buddha, Victoria Harbour.
Do Chicago and Hong Kong have stock exchanges?
Yes. Chicago has the CME (Chicago Mercantile Exchange), CBOE and Hong Kong has the HKEX (Hong Kong Stock Exchange). The +13h time difference affects trading hour overlaps between these exchanges.
Which countries use CST (Central Standard Time)?
CST is used in United States (Central), Canada (Manitoba, Saskatchewan), Mexico, Guatemala, Honduras, El Salvador, and 3 more countries.
Does CST observe daylight saving time?
Yes, CST switches to CDT during summer months.
What are some interesting facts about CST?
CST covers 20 US states fully or partially. Chicago and Houston are the two largest cities in the Central Time Zone.
Which cities are in the HKT timezone?
Major cities in the HKT timezone include Hong Kong, Kowloon, Tsuen Wan, Sha Tin.
What is the UTC offset for HKT?
Hong Kong Time (HKT) is at UTC+08:00.
What should I know about the HKT timezone?
Hong Kong does not observe daylight saving time and has kept UTC+08:00 since 1979. HKT shares its offset with China Standard Time, Singapore Time and Philippine Time.
When is it midnight in Chicago, what time is it in Hong Kong?
When it is 12:00 AM (midnight) in Chicago (CST), it is +13h later in Hong Kong (HKT).
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