User:AlanM1/utc Time in Illinois

The U.S. state of Illinois is located in the Central Time Zone. Several clock towers can be found in the state.

History
According to ftp://ftp.iana.org/tz/data/northamerica until 1883-11-18 12:09:24 local mean time, time in Chicago was defined as -5:50:36.

IANA time zone database
The zone for Illinois as given by zone.tab of the IANA time zone database, columns marked * are from the zone.tab :