O'Fallon in numbers
- Coordinates
- 38.8106, -90.6999
- Population
- 85 040
- Region
- Missouri
- Country
- United States, North America
- Capital
- Washington, D.C. — 1182 km away
- Same name
- 2 more places in the world share this name
What time is it in O'Fallon, Missouri, United States
This page keeps the current time in O'Fallon, Missouri, United States, according to the America/Chicago zone (−5).
O'Fallon, United States
Saturday, 24 October 2026
UTC−5 · America/Chicago
Local time in O'Fallon
UTC−5 · daylight saving time is active
Local time in O'Fallon, Missouri.
The sun today
Sunrise 7:22 AM Solar noon 12:48 PM Sunset 6:14 PM Daylight 10 h 52 min Night 13 h 08 min Civil twilight 6:55 AM – 6:41 PM
Weather in O'Fallon right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
O'Fallon and its neighbours
Postal codes
- 63366 O Fallon — 4.0 km away
- 63368 O Fallon — 7.1 km away
- 63376 Saint Peters — 7.5 km away
- 63367 Lake Saint Louis — 7.6 km away
- 63338 Cottleville — 8.2 km away
- 63304 Saint Charles — 10.5 km away
Postal codes come from the free GeoNames dataset. Where a code is listed with a distance, it belongs to a nearby settlement — GeoNames spells that name differently from ours.
Largest cities in Missouri
- Kansas City 475 378
- St. Louis 279 695
- Springfield 170 188
- Kansas City 152 933
- Columbia 129 330
- Independence 117 255
Other places named O'Fallon
Same time zone — America/Chicago
- Chicago United States
- Houston United States
- San Antonio United States
- Dallas United States
- Fort Worth United States
- Austin United States
Nearby places
- Saint Charles County — 3.9 km
- Dardenne Prairie — 5.2 km
- Saint Peters — 6.5 km
- All Saints Village — 6.5 km
- Saint Paul — 6.7 km
- Dardenne — 7.0 km
Time and daylight in O'Fallon
Within O'Fallon, postal codes number 6.
O'Fallon observes America/Chicago time, currently expressed as UTC−5. Daylight saving time here: Yes.
Sunrise today in O'Fallon lands at 7:22 AM; sunset lands at 6:14 PM. That is 10 h 52 min of light.
The clock reading for O'Fallon covers nearby Saint Charles County and Dardenne Prairie as well.
Questions and answers
- What time zone is used by O'Fallon?
- O'Fallon uses the America/Chicago time zone, which has an offset of −5.
- Is there any clock change for daylight saving in O'Fallon?
- Daylight saving in O'Fallon: Yes.
- What are sunrise and sunset in O'Fallon today?
- Sunrise 7:22 AM, sunset 6:14 PM.