MST to CST

On Monday 5 October 2026, Chicago is 1 hour ahead of Denver. Denver is on MDT, and Chicago is on CDT. So 9:00 AM MDT in Denver is 10:00 AM CDT in Chicago.

MST and CST are the winter names. Both places keep summer time until Sunday 1 November 2026.

In Chicago

10:00 AM

Tuesday 6 October 2026CDT

9:00 AM MDT in Denver on Tuesday 6 October 2026 is 10:00 AM CDT in Chicago the same day.

Chicago is 1 hour ahead of Denver on this date.

From Sunday 1 November 2026, Chicago and Denver show the same time.

Hours in Denver and Chicago

Hours in Denver and Chicago
DenverChicago
6:00 AM MDT7:00 AM CDT
9:00 AM MDT10:00 AM CDT
12:00 PM MDT1:00 PM CDT
3:00 PM MDT4:00 PM CDT
6:00 PM MDT7:00 PM CDT
9:00 PM MDT10:00 PM CDT

Arizona

Arizona stays on MST all year, so it has a table of its own.

Chicago is 2 hours ahead of Phoenix.

Phoenix is 1 hour behind Denver until Sunday 1 November 2026.

Hours in Phoenix and Chicago
PhoenixChicago
6:00 AM MST8:00 AM CDT
9:00 AM MST11:00 AM CDT
12:00 PM MST2:00 PM CDT
3:00 PM MST5:00 PM CDT
6:00 PM MST8:00 PM CDT
9:00 PM MST11:00 PM CDT

When the gap changes

Denver and Chicago change their clocks on the same nights, so the gap stays the same all year.

More conversions