EST to Chicago
+0hEST
ESTSOURCEChicago
CDTGreen rows indicate typical business hours (9 AM - 5 PM)
EST and CDT on the World Map
The map below highlights the EST (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 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.
Time Conversion Guide: EST to Chicago
EST runs on Eastern Standard Time (EST) at UTC-05:00. Chicago runs on Central Daylight Time (CDT) at UTC-05:00, also currently on daylight saving time. That puts EST no time difference Chicago — a difference of +0h at the current offsets.
In practice, when it is 9:00 AM in EST it is 9:00 AM in Chicago. Midnight in EST is 12:00 AM in Chicago.Chicago observes daylight saving time while EST does not, so the gap narrows or widens by an hour part of the year.
EST to Chicago time conversion table
| EST (EST) | Chicago (CDT) | Day |
|---|---|---|
| 12:00 AM | 12:00 AM | same day |
| 6:00 AM | 6:00 AM | same day |
| 7:00 AM | 7:00 AM | same day |
| 8:00 AM | 8:00 AM | same day |
| 9:00 AM | 9:00 AM | same day |
| 12:00 PM | 12:00 PM | same day |
| 3:00 PM | 3:00 PM | same day |
| 5:00 PM | 5:00 PM | same day |
| 6:00 PM | 6:00 PM | same day |
| 9:00 PM | 9:00 PM | same day |
Why people convert EST to Chicago time
- Scheduling a call from EST to Chicago: a 10:00 AM start in EST lands at 10:00 AM in Chicago, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both EST and Chicago are inside the 9-to-5 working day between 9:00 AM and 5:00 PM EST time (9:00 AM–5:00 PM CDT). That is roughly 8 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in EST is 8:00 PM in Chicago makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM EST" is unambiguous; "3 PM" across a +0h gap is not.
- Block 9:00 AM–5:00 PM EST as the recurring meeting window if you work primarily from EST and need Chicago colleagues present.
- 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 EST and Chicago
Both EST and Chicago sit inside the 9 AM – 5 PM working day between 9:00 AM–5:00 PM EST, which is 9:00 AM–5:00 PM CDT. That gives roughly 8 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
EST and Chicago share 8 hours of working-hours overlap (9:00 AM–5:00 PM EST), so scheduling a live meeting is straightforward.
EST is no time difference Chicago (EST UTC-05:00 → CDT UTC-05:00). The shared working window is 9:00 AM–5:00 PM EST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
EST
☀ 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 EST and Chicago?
EST (EST, UTC-05:00) is no time difference Chicago (CDT, UTC-05:00). The gap is currently +0h.
How do I convert EST time to Chicago time?
Add +0h to EST local time. For example, 9:00 AM in EST is 9:00 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 +0h offset from EST.
What is the best time to call Chicago from EST?
Call between 9:00 AM and 5:00 PM EST — that maps to 9:00 AM–5:00 PM CDT and keeps both parties inside the working day.
Which is ahead, EST or Chicago?
EST and Chicago are currently on the same clock.
Do EST and Chicago use different time zones?
EST uses EST at UTC-05:00, while Chicago (USA) uses CDT at UTC-05:00. The IANA identifiers are America/New_York and America/Chicago.
Does daylight saving time affect the EST–Chicago difference?
Yes at the moment: Chicago is on daylight saving time and EST is not, so the +0h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share EST's time zone?
EST also covers New York City, Washington D.C., Miami, Toronto, Philadelphia, Atlanta, Boston, Montreal and 8 more.
Which countries use EST, EST's zone?
EST is used in United States (Eastern), Canada (Ontario, Quebec), Mexico (Quintana Roo), Panama, Jamaica, Cayman Islands, Haiti, Bahamas and 4 more.
What is the time difference between EST and Chicago?
Chicago is +0h from EST.
What timezone is EST in?
EST operates on its local timezone.
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 Chicago?
Standard business hours in Chicago are 8:00 AM - 5:00 PM CST.
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 EST, what time is it in Chicago?
When it is 12:00 AM (midnight) in EST (EST), it is +0h later in Chicago (CST).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More EST time conversions
- est to new york
- est to edt
- est to london
- est to dubai
- est to tokyo
- est to singapore
- est to sydney
- est to los angeles
- est to paris
- est to delhi
- est to mumbai
- est to berlin
- est to hong kong
- est to toronto
- est to kathmandu
- new york to est
- london to est
- dubai to est
- tokyo to est
- singapore to est
- sydney to est
- los angeles to est
- paris to est
- delhi to est
- mumbai to est
- berlin to est
- hong kong to est
- toronto to est
- kathmandu to est
See every conversion from EST →·See every conversion from Chicago →