Toronto to Chicago
-1hToronto
EDTSOURCEChicago
CDTGreen rows indicate typical business hours (9 AM - 5 PM)
EDT and CDT on the World Map
The map below highlights the EDT (Eastern Standard Time) and CDT (Central Standard Time) timezone regions across the globe.
EST – Eastern Standard Time
UTC-05:00Eastern Standard Time (EST) is the time zone for the eastern United States and Canada, 5 hours behind UTC.
- •EST is the most widely used time zone in the United States by population.
- •The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
- •23 US states are fully or partially in the Eastern Time Zone.
- •EST was established by the Standard Time Act of 1918.
- •Over 47% of the US population lives in the Eastern Time Zone.
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.
About Toronto
WikipediaToronto shares Eastern Time (EST/EDT) with New York. As Canada's largest city and financial center, Toronto's TSX is among North America's largest stock exchanges.
Toronto is the most multicultural city in the world - over 50% of residents were born outside Canada.
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.
Toronto to Chicago Time Difference – Complete Guide
Toronto runs on Eastern Daylight Time (EDT) at UTC-04:00, currently observing daylight saving time. Chicago runs on Central Daylight Time (CDT) at UTC-05:00, also currently on daylight saving time. That puts Toronto 1 hour behind Chicago — a difference of -1h at the current offsets.
In practice, when it is 9:00 AM in Toronto it is 8:00 AM in Chicago. Midnight in Toronto is 11:00 PM in Chicago. Because both zones shift for daylight saving, the gap between them only changes during the few weeks each year when their transition dates differ.
Toronto to Chicago time conversion table
| Toronto (EDT) | Chicago (CDT) | Day |
|---|---|---|
| 12:00 AM | 11:00 PM | previous day |
| 6:00 AM | 5:00 AM | same day |
| 7:00 AM | 6:00 AM | same day |
| 8:00 AM | 7:00 AM | same day |
| 9:00 AM | 8:00 AM | same day |
| 12:00 PM | 11:00 AM | same day |
| 3:00 PM | 2:00 PM | same day |
| 5:00 PM | 4:00 PM | same day |
| 6:00 PM | 5:00 PM | same day |
| 9:00 PM | 8:00 PM | same day |
Why people convert Toronto to Chicago time
- Scheduling a call from Toronto to Chicago: a 10:00 AM start in Toronto lands at 9:00 AM in Chicago, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Toronto and Chicago are inside the 9-to-5 working day between 10:00 AM and 5:00 PM EDT time (9:00 AM–4:00 PM CDT). That is roughly 7 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Toronto is 7:00 PM in Chicago makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM EDT" is unambiguous; "3 PM" across a -1h gap is not.
- Block 10:00 AM–5:00 PM EDT as the recurring meeting window if you work primarily from Toronto and need Chicago colleagues present.
- Toronto: Clocks fall back on Sun, Nov 1, 2026. Re-check this page after that date because the offset changes and so does the -1h gap.
- Chicago: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.
About EST (Eastern Standard Time)
Eastern Standard Time (EST) is observed during the winter months in the eastern part of North America. It covers 23 US states and parts of Canada including Ontario and Quebec. EST is the most populous time zone in the United States, home to major financial centers like New York City and global organizations headquartered in Washington D.C. During daylight saving time (March–November), clocks shift to Eastern Daylight Time (EDT, UTC-04:00). The time zone also covers parts of the Caribbean and Central America including Panama, Jamaica, and the Cayman Islands.
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.
Best time to call between Toronto and Chicago
Both Toronto and Chicago sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM EDT, which is 9:00 AM–4:00 PM CDT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Toronto and Chicago share 7 hours of working-hours overlap (10:00 AM–5:00 PM EDT), so scheduling a live meeting is straightforward.
Toronto is 1 hour behind Chicago (EDT UTC-04:00 → CDT UTC-05:00). The shared working window is 10:00 AM–5:00 PM EDT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
Toronto
☀ Currently in DST
Standard: UTC-05:00 · DST: UTC-04:00
Clocks fall back on Sun, Nov 1, 2026
Chicago
☀ 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 Toronto and Chicago?
Toronto (EDT, UTC-04:00) is 1 hour behind Chicago (CDT, UTC-05:00). The gap is currently -1h.
How do I convert Toronto time to Chicago time?
Add -1h to Toronto local time. For example, 9:00 AM in Toronto is 8:00 AM in Chicago.
What time is it in Chicago right now?
Chicago 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 -1h offset from Toronto.
What is the best time to call Chicago from Toronto?
Call between 10:00 AM and 5:00 PM EDT — that maps to 9:00 AM–4:00 PM CDT and keeps both parties inside the working day.
Which is behind, Toronto or Chicago?
Toronto is 1 hour behind Chicago. When it is 12:00 PM in Toronto it is 11:00 AM in Chicago.
Do Toronto and Chicago use different time zones?
Toronto (Canada) uses EDT at UTC-04:00, while Chicago (USA) uses CDT at UTC-05:00. The IANA identifiers are America/Toronto and America/Chicago.
Does daylight saving time affect the Toronto–Chicago difference?
Both zones observe DST, so the difference stays at -1h for most of the year and only changes during the weeks when their transition dates do not line up.
Which other cities share Toronto's time zone?
EDT also covers New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal and 8 more.
Which countries use EDT, Toronto's zone?
EDT is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, Haiti, Bahamas and 4 more.
Is there a day difference between Toronto and Chicago?
Not normally. The -1h gap only pushes the date over the previous day.
What is the time difference between Toronto and Chicago?
Chicago is -1h from Toronto.
What timezone is Toronto in?
Toronto shares Eastern Time (EST/EDT) with New York. As Canada's largest city and financial center, Toronto's TSX is among North America's largest stock exchanges.
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 are the business hours in Toronto?
Standard business hours in Toronto are 9:00 AM - 5:00 PM EST.
What are the business hours in Chicago?
Standard business hours in Chicago are 8:00 AM - 5:00 PM CST.
What is the best time to schedule a call between Toronto and Chicago?
The best overlap for a call is when both cities are in business hours. Toronto works 9:00 AM - 5:00 PM EST and Chicago works 8:00 AM - 5:00 PM CST (-1h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Toronto and Chicago?
Toronto uses CAD (C$) while Chicago uses USD ($). Check current exchange rates when planning travel or business between these cities.
How do Toronto and Chicago compare in size?
Toronto has a population of approximately 2.9 million (metro: 6.3 million), while Chicago has approximately 2.7 million (metro: 9.5 million).
What are the major landmarks in Toronto and Chicago?
Toronto is known for CN Tower, Royal Ontario Museum, Ripley's Aquarium. Chicago is famous for Willis Tower, Millennium Park, Cloud Gate (The Bean).
Do Toronto and Chicago have stock exchanges?
Yes. Toronto has the TSX (Toronto Stock Exchange) and Chicago has the CME (Chicago Mercantile Exchange), CBOE. The -1h time difference affects trading hour overlaps between these exchanges.
Which countries use EST (Eastern Standard Time)?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, and 6 more countries.
Does EST observe daylight saving time?
Yes, EST switches to EDT during summer months.
What are some interesting facts about EST?
EST is the most widely used time zone in the United States by population. The New York Stock Exchange (NYSE) and NASDAQ operate on Eastern Time, opening at 9:30 AM EST.
Which cities are in the CST timezone?
Major cities in the CST timezone include Chicago, Houston, Dallas, San Antonio, Mexico City, Austin, Winnipeg, Memphis.
What is the UTC offset for CST?
Central Standard Time (CST) is at UTC-06:00. During daylight saving time, it shifts to CDT.
What should I know about the CST timezone?
CST covers 20 US states fully or partially. Chicago and Houston are the two largest cities in the Central Time Zone.
When is it midnight in Toronto, what time is it in Chicago?
When it is 12:00 AM (midnight) in Toronto (EST), it is -1h later in Chicago (CST).
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