Chicago to CAT
+7hChicago
CDTSOURCECAT
CATGreen rows indicate typical business hours (9 AM - 5 PM)
CDT and CAT on the World Map
The map below highlights the CDT (Central Standard Time) and CAT (Central Africa 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.
CAT – Central Africa Time
UTC+02:00Central Africa Time (CAT, UTC+02:00) covers Zimbabwe, Zambia, Mozambique, Malawi and neighbouring countries.
- •Central Africa Time is fixed at UTC+02:00 with no daylight saving.
- •CAT matches South Africa Standard Time (SAST) all year.
- •It is the same offset as Central European Time in winter.
- •Harare is level with Johannesburg and one hour ahead of Lagos.
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.
Understanding the +7h Gap: Chicago vs CAT
Chicago runs on Central Daylight Time (CDT) at UTC-05:00, currently observing daylight saving time. CAT runs on Central Africa Time (CAT) at UTC+02:00. That puts Chicago 7 hours ahead of CAT — a difference of +7h at the current offsets.
In practice, when it is 9:00 AM in Chicago it is 4:00 PM in CAT. Midnight in Chicago is 7:00 AM in CAT.Chicago observes daylight saving time while CAT does not, so the gap narrows or widens by an hour part of the year.
Chicago to CAT time conversion table
| Chicago (CDT) | CAT (CAT) | Day |
|---|---|---|
| 12:00 AM | 7:00 AM | same day |
| 6:00 AM | 1:00 PM | same day |
| 7:00 AM | 2:00 PM | same day |
| 8:00 AM | 3:00 PM | same day |
| 9:00 AM | 4:00 PM | same day |
| 12:00 PM | 7:00 PM | same day |
| 3:00 PM | 10:00 PM | same day |
| 5:00 PM | 12:00 AM | next day |
| 6:00 PM | 1:00 AM | next day |
| 9:00 PM | 4:00 AM | next day |
Why people convert Chicago to CAT time
- Scheduling a call from Chicago to CAT: a 10:00 AM start in Chicago lands at 5:00 PM in CAT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Chicago and CAT are inside the 9-to-5 working day between 9:00 AM and 10:00 AM CDT time (4:00 PM–5:00 PM CAT). That is roughly 1 hours of usable overlap.
- Booking travel or deliveries: tracking CAT local time against Chicago keeps pickup windows and arrival estimates honest across the +7h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM CDT" is unambiguous; "3 PM" across a +7h gap is not.
- Block 9:00 AM–10:00 AM CDT as the recurring meeting window if you work primarily from Chicago and need CAT colleagues present.
- Chicago: Clocks fall back on Sun, Nov 1, 2026. Re-check this page after that date because the offset changes and so does the +7h 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 CAT (Central Africa Time)
Central Africa Time (CAT) is fixed at UTC+02:00 all year across a broad belt of southern and central Africa, including Zimbabwe, Zambia, Mozambique, Malawi, Rwanda, Burundi and the eastern Democratic Republic of the Congo. None of these countries observes daylight saving time, so CAT never shifts. It is the same offset as South Africa Standard Time (SAST) and the winter version of Central European Time, which makes CAT a convenient bridge between African, European and Middle Eastern schedules — Harare is level with Johannesburg all year and one hour ahead of Lagos.
Best time to call between Chicago and CAT
Both Chicago and CAT sit inside the 9 AM – 5 PM working day between 9:00 AM–10:00 AM CDT, which is 4:00 PM–5:00 PM CAT. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Chicago and CAT overlap for only 60 minutes (9:00 AM–10:00 AM CDT), so meetings have to be booked precisely.
Chicago is 7 hours ahead of CAT (CDT UTC-05:00 → CAT UTC+02:00). The shared working window is 9:00 AM–10:00 AM CDT. 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
CAT
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 CAT?
Chicago (CDT, UTC-05:00) is 7 hours ahead of CAT (CAT, UTC+02:00). The gap is currently +7h.
How do I convert Chicago time to CAT time?
Add +7h to Chicago local time. For example, 9:00 AM in Chicago is 4:00 PM in CAT.
What time is it in CAT right now?
CAT uses CAT at UTC+02:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +7h offset from Chicago.
What is the best time to call CAT from Chicago?
Call between 9:00 AM and 10:00 AM CDT — that maps to 4:00 PM–5:00 PM CAT and keeps both parties inside the working day.
Which is ahead, Chicago or CAT?
Chicago is 7 hours ahead of CAT. When it is 12:00 PM in Chicago it is 7:00 PM in CAT.
Do Chicago and CAT use different time zones?
Chicago (USA) uses CDT at UTC-05:00, while CAT uses CAT at UTC+02:00. The IANA identifiers are America/Chicago and Africa/Harare.
Does daylight saving time affect the Chicago–CAT difference?
Yes at the moment: Chicago is on daylight saving time and CAT is not, so the +7h 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 CAT?
Not normally. The +7h gap only pushes the date over for late-evening times.
What is the time difference between Chicago and CAT?
CAT is +7h 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 CAT in?
CAT operates on its local timezone.
What are the business hours in Chicago?
Standard business hours in Chicago are 8:00 AM - 5:00 PM CST.
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 CAT timezone?
Major cities in the CAT timezone include Harare, Lusaka, Maputo, Lilongwe, Kigali.
What is the UTC offset for CAT?
Central Africa Time (CAT) is at UTC+02:00.
What should I know about the CAT timezone?
Central Africa Time is fixed at UTC+02:00 with no daylight saving. CAT matches South Africa Standard Time (SAST) all year.
When is it midnight in Chicago, what time is it in CAT?
When it is 12:00 AM (midnight) in Chicago (CST), it is +7h later in CAT (CAT).
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