Chicago to Great Falls Time Converter
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Quick answers
Selected conversion
7:00 am07:00 CDT (UTC-5), Oct 26, 2026 = 6:00 am06:00 MDT (UTC-6), Oct 26, 2026
Chicago is 1 hour ahead of Great Falls.
How the time difference changes
Normally, Chicago is 1 hour ahead of Great Falls. Briefly around seasonal clock changes, Chicago is 2 hours ahead of Great Falls or Chicago and Great Falls have the same time.
Typically, working hours of 9:00 am to 6:00 pm in Chicago correspond to 8:00 am to 5:00 pm in Great Falls.Typically, working hours of 09:00 to 18:00 in Chicago correspond to 08:00 to 17:00 in Great Falls.
Compare Chicago time with Great Falls time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
CDT (Central Daylight Time) is 1 hour ahead of MDT (Mountain Daylight Time).
7:00 am07:00 in Chicago, IL, USA is 6:00 am06:00 in Great Falls, MT, USA
Chicago to Great Falls call time
Best time for a conference call or a meeting is between 10am-6pm10:00-18:00 in Chicago which corresponds to 9am-5pm09:00-17:00 in Great Falls
7:00 am07:00 CDT (Central Daylight Time) (Chicago, IL, USA). Offset UTC -5:00 hours
6:00 am06:00 MDT (Mountain Daylight Time) (Great Falls, MT, USA). Offset UTC -6:00 hours
7:00 am07:00 Chicago, IL, USA / 6:00 am06:00 Great Falls, MT, USA
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
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Chicago Time Zone and Facts
Time Zone
CST – Central Standard Time, UTC-6 (standard time)
Chicago Facts
Great Falls Time Zone and Facts
Time Zone
MST – Mountain Standard Time, UTC-7 (standard time)