What time is it in O'Fallon right now?

O'Fallon is on America/Chicago, currently UTC−5. The clock at the top of this page shows the live local time and updates every second in your browser.

What time zone is O'Fallon in?

O'Fallon uses the IANA time zone America/Chicago, which is UTC−5 at the moment. The offset shifts across the year because the zone observes daylight saving time.

Does O'Fallon observe daylight saving time?

Yes. The next change is on Sun, Nov 1, 2026, when clocks go back to UTC−6.

What time do the sun rise and set in O'Fallon today?

Today the sun rises at about 6:07 AM and sets at about 8:09 PM local time in O'Fallon, giving roughly 14h 2m of daylight. Solar noon falls at 1:09 PM.

United States · Missouri

Current local time in O'Fallon

O'Fallon keeps time on the America/Chicago zone, currently UTC−5. The offset shifts twice a year with daylight saving, and the clock below always reflects the rule in force today. The clock runs live in your browser; nothing about your location is sent anywhere.

Current local time

O'Fallon, Missouri

09:51

Fri, Jul 31UTC−5

O'Fallon time zone at a glance

IANA time zone: America/Chicago
Current UTC offset: UTC−5
Daylight saving: Observed
Next clock change: Sun, Nov 1, 2026 → UTC−6
Country: United States
Region: Missouri
Coordinates: 38.81°, -90.70°
Population: 85,040
Local date: Fri, Jul 31, 2026

Sunrise and sunset in O'Fallon today

Computed from O'Fallon's latitude and longitude for the current local date. Times shift by a minute or two either side depending on elevation and the horizon you actually see.

Sunrise: 6:07 AM
Sunset: 8:09 PM
Solar noon: 1:09 PM
Day length: 14h 2m
Civil dawn: 5:33 AM
Civil dusk: 8:44 PM
Golden hour ends: 6:40 AM
Golden hour begins: 7:37 PM

Full twilight and golden-hour breakdown

O'Fallon time difference from major cities

City	Local time now	O'Fallon is
Los AngelesUnited States	07:51 AM	2h ahead
LondonUnited Kingdom	03:51 PM	6h behind
DubaiUnited Arab Emirates	06:51 PM	9h behind
TokyoJapan	11:51 PM	14h behind

Need a different pair? Compare any two cities or convert a specific time.

Working with O'Fallon time

Scheduling across America/Chicago is where most calendar mistakes start — a meeting agreed in one zone drifts by an hour the moment either side changes its clocks. These tools each handle a piece of that problem.

Find a meeting timeSee which hours overlap between O'Fallon and everywhere else on your team.Convert a timeTranslate a specific moment into or out of America/Chicago.Track clock changesSee exactly when O'Fallon next changes its clocks.Add to your boardKeep O'Fallon beside your other cities, ticking live.Business hours overlapWork out the window where O'Fallon offices and yours are both open.Send a calendar inviteExport an event with America/Chicago baked in, not guessed.

Other cities in United States

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All United States cities and time zones

O'Fallontime — questions & answers

What time is it in O'Fallon right now?: O'Fallon is on America/Chicago, currently UTC−5. The clock at the top of this page shows the live local time and updates every second in your browser.
What time zone is O'Fallon in?: O'Fallon uses the IANA time zone America/Chicago, which is UTC−5 at the moment. The offset shifts across the year because the zone observes daylight saving time.
Does O'Fallon observe daylight saving time?: Yes. The next change is on Sun, Nov 1, 2026, when clocks go back to UTC−6.
What time do the sun rise and set in O'Fallon today?: Today the sun rises at about 6:07 AM and sets at about 8:09 PM local time in O'Fallon, giving roughly 14h 2m of daylight. Solar noon falls at 1:09 PM.