Time now in O'Fallon, Illinois , United States
UTC-05:00 • America/Chicago (CDT)
Your device clock is 472ms ahead of the detected local time (America/Chicago, UTC-05:00). Time reference obtained from NIST NTP servers with an accuracy of ±0.022 seconds.
01:36:12
Wednesday, May 20, 2026, week 21
City details
Country
United States
State
Illinois
Lat/Long
38.5923, -89.9112
Time Zone
America/Chicago (
UTC-05:00
)
Country Code
US
Population
29,002
Sunrise
5:42 AM
Sunset
8:10 PM
Day length
14 hours 28 minutes