Local Time in O'Fallon, United States
24°C / 75°F · Mainly clear
Outside business hoursDaylight Saving Time activeDST ends Nov 1
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Your Time
- IANA Zone
- America/Chicago
- Country
- United States
- Continent
- North America
Latest news in O'Fallon
- National wiffleball championship bringing top teams to O'Fallon, MissouriKSDK · 26d ago
- Florissant man detained by ICE after traffic stop to be deported after 26 years in U.S.STLPR · 108d ago
- Justice Department probes O’Fallon schools; Illinois Democrats call it a ‘sham’Belleville News-Democrat · 128d ago
- News - Community honors Class of 2026 enlistees during America’s 250DVIDS · 154d ago
- Brian Wilson Obituary (1963 - 2026) - O'Fallon, IL - Belleville News-DemocratLegacy obituary · 12d ago
Headlines via Google News.
Local Vibe
O'Fallon is a city in St. Charles County, Missouri, United States. It is part of the St. Louis metropolitan statistical area, along Interstates 64 and 70 between Lake St. Louis and St. Peters. As of the 2020 census, O'Fallon had a population of 91,316, making it St. Louis's most populous suburb as well as the most populous municipality in St. Charles County and the 7th-most populous in Missouri. O'Fallon's namesake in St. Clair County, Illinois, is also part of the St. Louis region. The two cities are one of the few pairs of same-named municipalities to be part of the same metro area.
O'Fallon on WikipediaPhotos via Wikimedia Commons
Map data via OpenStreetMapView larger map
O'Fallon vs. major world hubs
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- UTC-5 hours
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- O'Fallon0
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Compare O'Fallon With Other Cities
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Frequently Asked Questions
- What time is it in O'Fallon right now?
- The current time in O'Fallon, United States is 08:40:37 AM (CDT), which is UTC-5.
- What time zone is O'Fallon in?
- O'Fallon uses the America/Chicago time zone (IANA identifier), currently abbreviated CDT, UTC-5.
- Does O'Fallon observe daylight saving time?
- Yes. O'Fallon observes daylight saving time, and is currently in daylight saving time. The next change is on November 1, 2026.
- What is the UTC offset in O'Fallon?
- O'Fallon is currently UTC-5 relative to Coordinated Universal Time (UTC).