Right now, local time in O'Fallon is 13:31 (CST, UTC-06:00), and today is Monday, November 2, 2026. The live clock above updates every second.
O'Fallon ranks #20128 worldwide by population and #1788 in United States.
Time zone info
- Time zone
- America/Chicago CST
- UTC offset
- UTC-06:00
- Daylight saving
- Yes, in force now ✅ — Clocks go forward by 1 hour on March 14, 2027
- Solar time
- Clocks run about 16m ahead of the sun
- ISO week
- Week 45
Sunrise, sunset & moon today
- Sunrise
- 06:28
- Sunset
- 17:00
- Day length
- 10h 32m
- Solar noon
- 11:44
- Daylight range
- 9h 28m (winter) – 14h 52m (summer)
- Moon phase
- 🌗 Last Quarter · 47% illuminated
Full sunrise & sunset timetable for O'Fallon — golden hour, twilight and month view →
📍 Location & geography
- Coordinates
- 38.5923° N, 89.9112° W
- Hemisphere
- Northern · Western
- Elevation
- 167 m above sea level — higher than about 44% of cities with a recorded elevation
- Region
- Illinois
- Country
- 🇺🇸 United States
- Population
- 29,002 · #20128 worldwide
🌍 Antipode — the opposite side of the Earth
Dig straight down from O'Fallon through the centre of the Earth and you surface on the far side of the planet, at the antipode.
- Antipode coordinates
- 38.59° S, 90.09° E
- Hemisphere
- Southern · Eastern
- What lies there
- Open ocean or remote wilderness — the nearest city we track is Port-aux-Français, French Southern Territories, 1,980 km away
- Through the Earth
- ≈ 12,742 km in a straight line (≈ 20,015 km along the surface)
🕌 Prayer times in O'Fallon today ISNA
- Fajr
- 05:13
- Sunrise
- 06:28
- Dhuhr
- 11:44
- Asr
- 14:35
- Maghrib
- 16:58
- Isha
- 18:13
- Qibla direction
- 47.5° from north (NE (47°))
Full prayer timetable for O'Fallon — this month, 7-day forecast and Qibla →
O'Fallon sits in the America/Chicago time zone, UTC-06:00. The clocks are currently shifted forward for daylight saving time. Today brings 10h 32m of daylight, and nights are longer than days. It is one of the 17343 cities we cover in United States.
O'Fallon sits at just 167 m above sea level. O'Fallon's nearest major hub of the ones tracked below is Chicago, 414 km away; even Singapore lies some 15,356 km off. Its position on the globe is 38.59° N, 89.91° W, and the point on the exact opposite side of the Earth is described in the antipode section below.
Time difference with major cities
| Los Angeles | 11:31 | −2h |
| Chicago | 13:31 | same time |
| São Paulo | 16:31 | +3h |
| London | 19:31 | +6h |
| Paris | 20:31 | +7h |
| Moscow | 22:31 | +9h |
| Dubai | 23:31 | +10h |
| Mumbai | 01:01 | +11h 30m |
| Singapore | 03:31 | +14h |
| Hong Kong | 03:31 | +14h |
| Tokyo | 04:31 | +15h |
| Sydney | 06:31 | +17h |
Best time to call O'Fallon
Standard business hours (9:00 – 17:00) in major hubs, expressed in O'Fallon local time:
Cities sharing O'Fallon's time zone
Other cities in United States
- New York City14:31
- Los Angeles11:31
- Brooklyn14:31
- Chicago13:31
- Queens14:31
- Houston13:31
- Phoenix12:31
- Philadelphia14:31
- San Antonio13:31
- Manhattan14:31
- San Diego11:31
- The Bronx14:31
Distances from O'Fallon
| Chicago | 414 km | NNE (27°) |
| Los Angeles | 2,577 km | W (267°) |
| London | 6,744 km | NE (46°) |
| Paris | 7,038 km | NE (47°) |
| São Paulo | 8,250 km | SE (139°) |
| Moscow | 8,412 km | NNE (27°) |
| Tokyo | 10,310 km | NW (322°) |
| Dubai | 12,045 km | NNE (33°) |
| Hong Kong | 12,792 km | NNW (335°) |
| Mumbai | 13,362 km | NNE (19°) |
| Sydney | 14,609 km | WSW (256°) |
| Singapore | 15,356 km | NNW (339°) |
Cities near O'Fallon
- Shiloh4 km · 13:31
- Scott Air Force Base8 km · 13:31
- Fairview Heights7 km · 13:31
- Swansea9 km · 13:31
- Belleville10 km · 13:31
- Lebanon9 km · 13:31
- Collinsville11 km · 13:31
- Caseyville11 km · 13:31
FAQ
What time is it in O'Fallon right now?
The live clock at the top of this page shows the current local time in O'Fallon (United States), updated every second. It is currently week 45.
What time zone is O'Fallon in?
O'Fallon runs on the America/Chicago IANA time zone (UTC-06:00), currently abbreviated CST.
Does O'Fallon observe daylight saving time?
Yes — daylight saving time is in force right now. Clocks go forward by 1 hour on March 14, 2027.
What time is sunrise and sunset in O'Fallon today?
O'Fallon sees sunrise at 06:28 and sunset at 17:00 today, giving 10h 32m of daylight.
What moon phase is visible over O'Fallon tonight?
The moon phase over O'Fallon tonight is 🌗 Last Quarter with 47.0% illumination.
What is the antipode of O'Fallon?
The antipode of O'Fallon — the point on the exact opposite side of the Earth — lies at 38.59° S, 90.09° E. It falls in the ocean or a remote wilderness — the nearest city we track is Port-aux-Français, French Southern Territories, roughly 1,980 km away. The straight-line distance through the Earth is about 12,742 km.
How high above sea level is O'Fallon?
O'Fallon sits at about 167 m above sea level, higher than roughly 44% of cities with a recorded elevation.
What is solar time in O'Fallon?
Solar time follows the Sun's actual position, with solar noon when the Sun is highest in the sky. In O'Fallon, clocks run about 16 minutes ahead of local solar time, because the official time zone does not exactly match the Sun's position.