Chicago to Aspen Time Difference
Aspen is 1 hour behind Chicago. When it is noon in Chicago, it is 11:00 in Aspen.
Chicago (UTC-5) → Denver (UTC-6)
🕐 Interactive Time Explorer
When it's 21:00 in Chicago, it's 20:00 in Aspen
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Chicago & Aspen✓ Perfect Match (7 hours)
◐ Extended Hours (2 hours)
✈️ Travel Information
Distance
1,645 km
Est. Flight Time
~2.9h
Time Difference
-1h
Work Hours Overlap
7h
Excellent
🟢 Good to Call Now
16:10
10:00 - 17:00
⏰ Quick Conversion
06:00
Chicago
05:00
Aspen
09:00
Chicago
08:00
Aspen
12:00
Chicago
11:00
Aspen
15:00
Chicago
14:00
Aspen
18:00
Chicago
17:00
Aspen
21:00
Chicago
20:00
Aspen
00:00
Chicago
23:00
Aspen (-1)
03:00
Chicago
02:00
Aspen
Frequently Asked Questions
How many hours is Chicago ahead of Aspen?
Aspen is 1 hour behind Chicago. When it is 12:00 noon in Chicago, it is 11:00 in Aspen. Chicago operates on America/Chicago (UTC-5), while Aspen uses America/Denver (UTC-6).
What is the best time to call Aspen from Chicago?
There are 8 hours of overlapping business time (9 AM–5 PM) between Chicago and Aspen. The best window is 10:00–18:00 Chicago time (09:00–17:00 in Aspen).
Does the Chicago to Aspen time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between Chicago and Aspen
The distance between Chicago and Aspen is approximately 1,645 km. A direct flight typically takes around 2.9 hours. Your arrival clock will show local Aspen time — use our Flight Time Calculator to predict exact arrival times.