Chicago to Stony Brook Time Converter
Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
7:00 am07:00 CDT (UTC-5), Oct 17, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 17, 2026
Chicago is 1 hour behind Stony Brook.
How the time difference changes
Normally, Chicago is 1 hour behind Stony Brook. Briefly around seasonal clock changes, Chicago and Stony Brook have the same time or Chicago is 2 hours behind Stony Brook.
Typically, working hours of 9:00 am to 6:00 pm in Chicago correspond to 10:00 am to 7:00 pm in Stony Brook.Typically, working hours of 09:00 to 18:00 in Chicago correspond to 10:00 to 19:00 in Stony Brook.
Compare Chicago time with Stony Brook 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 behind EDT (Eastern Daylight Time).
7:00 am07:00 in Chicago, IL, USA is 8:00 am08:00 in Stony Brook, NY, USA
Chicago to Stony Brook call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in Chicago which corresponds to 10am-6pm10:00-18:00 in Stony Brook
7:00 am07:00 CDT (Central Daylight Time) (Chicago, IL, USA). Offset UTC -5:00 hours
8:00 am08:00 EDT (Eastern Daylight Time) (Stony Brook, NY, USA). Offset UTC -4:00 hours
7:00 am07:00 Chicago, IL, USA / 8:00 am08:00 Stony Brook, NY, 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
Stony Brook Time Zone and Facts
Time Zone
EST – Eastern Standard Time, UTC-5 (standard time)