312 area code

312 is an area code for the state of California, USA. The informations are about the city of Chicago.

Monday 15 September 2025, week 38 (UTC -4)

Cities served by area code 312

what area code is 312 ? : the area code is for Chicago, Oak Park, Cicero, Berwyn.

Time zone of 312 area code

Central Standard Time
Central Daylight Time
UTC -4

Sunrise and sunset for

Week number

The week number for the 15 September 2025 is 38. This week is 15/09/2025 to 21/09/2025.

Day number

Today is the 259 th day of the year 2025.

Position Chicago (Illinoi),

Position on google maps

United States area codes