312 area code
312 is an area code for the state of California, USA. The informations are about the city of Chicago.
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 -5
Sunrise and sunset for
- Sunrise : 08:13 EST
- Sunset : 17:24 EST
- Noon : 12:49 EST
- Duration of the day : 09 hours and 11 minutes
Week number
The week number for the 21 December 2025 is 51. This week is 15/12/2025 to 21/12/2025.
Day number
Today is the 355 th day of the year 2025.
Position Chicago (Illinoi),
- Latitude : 48.8566
- Longitude : 2.3522
United States area codes
- Area code 212
- Area code 213
- Area code 310
- Area code 312
- Area code 415
- Area code 510
- Area code 619
- Area code 702
- Area code 713
- Area code 718
- Area code 917
- Area code 949
- Area code 954
- Area code 305
- Area code 202
- Area code 602
- Area code 404
- Area code 646
- Area code 323
- Area code 786
- Area code 929
- Area code 469
- Area code 209
- Area code 470
- Area code 424
- Area code 206
- Area code 315
- Area code 720
- Area code 503