Great Falls to Chicago Time Converter
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Quick answers
Selected conversion
6:00 am06:00 MDT (UTC-6), Oct 25, 2026 = 7:00 am07:00 CDT (UTC-5), Oct 25, 2026
Great Falls is 1 hour behind Chicago.
How the time difference changes
Normally, Great Falls is 1 hour behind Chicago. Briefly around seasonal clock changes, Great Falls and Chicago have the same time or Great Falls is 2 hours behind Chicago.
Typically, working hours of 9:00 am to 6:00 pm in Great Falls correspond to 10:00 am to 7:00 pm in Chicago.Typically, working hours of 09:00 to 18:00 in Great Falls correspond to 10:00 to 19:00 in Chicago.
Compare Great Falls time with Chicago time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
MDT (Mountain Daylight Time) is 1 hour behind CDT (Central Daylight Time).
6:00 am06:00 in Great Falls, MT, USA is 7:00 am07:00 in Chicago, IL, USA
Great Falls to Chicago call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in Great Falls which corresponds to 10am-6pm10:00-18:00 in Chicago
6:00 am06:00 MDT (Mountain Daylight Time) (Great Falls, MT, USA). Offset UTC -6:00 hours
7:00 am07:00 CDT (Central Daylight Time) (Chicago, IL, USA). Offset UTC -5:00 hours
6:00 am06:00 Great Falls, MT, USA / 7:00 am07:00 Chicago, IL, 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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Great Falls Time Zone and Facts
Time Zone
MST – Mountain Standard Time, UTC-7 (standard time)
Great Falls Facts
Chicago Time Zone and Facts
Time Zone
CST – Central Standard Time, UTC-6 (standard time)