Time Difference between Boulder and Chicago
Denver (UTC-6) → Chicago (UTC-5)
🕐 Interactive Time Explorer
When it's 12:00 in Boulder, it's 13:00 in Chicago
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Boulder & Chicago✓ Perfect Match (7 hours)
◐ Extended Hours (2 hours)
✈️ Travel Information
Distance
1,493 km
Est. Flight Time
~2.8h
Time Difference
+1h
Work Hours Overlap
7h
Excellent
🔴 Office Closed
Today 09:00
09:00 - 16:00
⏰ Quick Conversion
06:00
Boulder
07:00
Chicago
09:00
Boulder
10:00
Chicago
12:00
Boulder
13:00
Chicago
15:00
Boulder
16:00
Chicago
18:00
Boulder
19:00
Chicago
21:00
Boulder
22:00
Chicago
00:00
Boulder
01:00
Chicago
03:00
Boulder
04:00
Chicago
❓ Frequently Asked Questions
Time Difference Between Boulder and Chicago
Boulder, United States and Chicago, United States are separated by a time difference of 1 hour. When it's noon in Boulder, it's 1 hour later in Chicago.
Boulder operates on America/Denver timezone, while Chicago uses America/Chicago. Both cities may observe Daylight Saving Time at different dates, which can temporarily change the time difference by an hour.
Best Time to Call
With only 1 hour difference, scheduling calls between Boulder and Chicago is relatively easy.
Flight Considerations
The distance between Boulder and Chicago is approximately 1,493 km. A direct flight typically takes around 2.8 hours. When traveling, remember that your arrival time will be in local time. Use our Flight Time Calculator for accurate arrival predictions.