Chicago to Monterrey Time Difference
Monterrey is 1 hour behind Chicago. When it's 11:27:16 AM in Chicago, it's 10:27:16 AM in Monterrey.
How Many Hours Behind Is Monterrey From Chicago?
Monterrey is 1 hour behind Chicago. So Chicago is 1 hour ahead of Monterrey looking the other way — the same gap, described from the other end.
In practice that means a working day in Chicago starts when it is already 8:00 AM in Monterrey. The gap is not fixed all year: it becomes on Sunday, November 1, 2026, when Chicago changes its clocks.
Best Time to Call Chicago and Monterrey
Both cities are inside normal business hours between 10:00 AM and 5:00 PM in Chicago — that's 9:00 AM to 4:00 PM in Monterrey. That's a 7-hour window, so a call fits comfortably in either side's working day.
both at work Chicago only Monterrey only neither — hours shown along the strip are Chicago local time.
Convert a Specific Time
Pick any date and time in Chicago to see the exact equivalent in Monterrey.
Common Times Converted
Chicago time on the left, Monterrey time on the right.
Chicago to Monterrey: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Chicago. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Chicago | Monterrey | Working hours |
|---|---|---|
| 12:00 AM | 11:00 PM prev day | — |
| 1:00 AM | 12:00 AM | — |
| 2:00 AM | 1:00 AM | — |
| 3:00 AM | 2:00 AM | — |
| 4:00 AM | 3:00 AM | — |
| 5:00 AM | 4:00 AM | — |
| 6:00 AM | 5:00 AM | — |
| 7:00 AM | 6:00 AM | — |
| 8:00 AM | 7:00 AM | — |
| 9:00 AM | 8:00 AM | Chicago only |
| 10:00 AM | 9:00 AM | Both cities |
| 11:00 AM | 10:00 AM | Both cities |
| 12:00 PM | 11:00 AM | Both cities |
| 1:00 PM | 12:00 PM | Both cities |
| 2:00 PM | 1:00 PM | Both cities |
| 3:00 PM | 2:00 PM | Both cities |
| 4:00 PM | 3:00 PM | Both cities |
| 5:00 PM | 4:00 PM | Monterrey only |
| 6:00 PM | 5:00 PM | — |
| 7:00 PM | 6:00 PM | — |
| 8:00 PM | 7:00 PM | — |
| 9:00 PM | 8:00 PM | — |
| 10:00 PM | 9:00 PM | — |
| 11:00 PM | 10:00 PM | — |
Understanding the Chicago – Monterrey Time Difference
Chicago runs on America/Chicago, currently CDT (UTC-5:00). Monterrey runs on America/Monterrey, currently CST (UTC-6:00). The gap of 1 hour is simply the distance between those two offsets.
Chicago observes Daylight Saving Time and Monterrey does not, so the gap between them shifts by an hour twice a year. The next shift is on Sunday, November 1, 2026, when Chicago adjusts its clocks and the difference becomes . Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States · Daylight Saving Time in Mexico.
Chicago today
Monterrey today
Frequently Asked Questions
What is the time difference between Chicago and Monterrey?
Monterrey is currently 1 hour behind Chicago. That gap becomes on Sunday, November 1, 2026, when Chicago changes its clocks.
How many hours behind is Monterrey from Chicago?
Monterrey is 1 hour behind Chicago. Looking at it the other way, Chicago is 1 hour ahead of Monterrey.
What time is it in Monterrey when it is 9:00 AM in Chicago?
When it is 9:00 AM in Chicago, it is 8:00 AM in Monterrey.
Is Monterrey ahead of or behind Chicago?
Monterrey is 1 hour behind Chicago. Chicago reaches each point in the day first, so Monterrey is still getting started while the Chicago working day is finishing.
What is the best time to call between Chicago and Monterrey?
Between 10:00 AM and 5:00 PM Chicago time, which is 9:00 AM to 4:00 PM in Monterrey. Both cities are inside normal business hours during that window.
Does the time difference between Chicago and Monterrey change during the year?
Yes. Chicago observes Daylight Saving Time and Monterrey does not, so the gap between them shifts during the year. It changes to on Sunday, November 1, 2026.
What time zones are Chicago and Monterrey in?
Chicago uses the America/Chicago time zone, currently CDT (UTC-5:00). Monterrey uses America/Monterrey, currently CST (UTC-6:00).