Add Chicago (United States) to your list and use my-locations table to visually convert it's time to another timezone or city time.
Mouse over the colored hour-tiles and glance at the hours selected by the column.

Current time zone for Chicago (United States) is CST, whose offset is GMT-6 from Greenwich Mean Time (GMT).

The IANA timezone identifier for Chicago, United States is "America/Chicago"

It currently does not observe Daylight Savings Time.

DST ended on Sunday, November 7 2021 at 2:00 am local time, when time in Chicago moved back 1 hour to 1:00 am.
DST starts on Sunday, March 13 2022 at 2:00 am local time, when time in Chicago moves forward 1 hour to 3:00 am.