|Timezone||CST (10:12:31 AM)|
312 Area Code is part of 1 counties in the state of Illinois. There are around 1 cities in the 312 area code. The 312 area code is located in the Central Standard Time timezone. The Central Standard Time time zone is also known as America/Chicago. Illinois has an avarage population of 12,882,135 spread between the coordinates of +41.811929 Latitude and -087.687320 Longitude.