Current local time in O'Fallon, United States
CDT · UTC-05:00 · Central Daylight Time
About O'Fallon
O'Fallon, Illinois, United States uses the Central Daylight Time time zone (America/Chicago), currently UTC-05:00. Population: about 29,002.
| Country: | United States |
|---|---|
| State / region: | Illinois |
| Coordinates: | 38°36′N / 89°55′W |
| Population: | 29,002 |
| Currency: | United States dollar (USD) |
| Languages: | English |
| Country calling code: | +1 |
Time zone in O'Fallon
| IANA time zone: | America/Chicago |
|---|---|
| Time zone name: | Central Daylight Time (CDT) |
| Current UTC offset: | UTC-05:00 |
| UTC time now: | |
| Zones in United States: | 29 — see all |
Daylight saving time
O'Fallon is currently on daylight saving time. Clocks go back 1 hour on Sunday, 1 November 2026, to UTC-06:00.
| Next clock change: | Sunday, 1 November 2026 |
|---|---|
| Local time jumps: | from 02:00 to 01:00 (back 60 minutes) |
| New offset: | UTC-06:00 (CST) |
Sunrise and sunset in O'Fallon today
| Sunrise: | 07:15 |
|---|---|
| Sunset: | 18:13 |
| Solar noon: | 12:44 |
| Day length: | 10h 58m |
| Civil twilight: | 06:48 – 18:40 |
Calculated for 2026-10-21 at the city’s coordinates using PHP’s solar position algorithm; times are local (CDT) and approximate to about a minute.
Time difference from O'Fallon
- London−6 hO'Fallon is 6 hours behind London
- New York−1 hO'Fallon is 1 hour behind New York
- Abuja−6 hO'Fallon is 6 hours behind Abuja
Frequently asked questions about O'Fallon time
What time zone is O'Fallon in?
O'Fallon uses the IANA time zone America/Chicago (Central Daylight Time). The current offset is UTC-05:00.
Does O'Fallon observe daylight saving time?
O'Fallon is currently on daylight saving time. Clocks go back 1 hour on Sunday, 1 November 2026, to UTC-06:00.
What is the time difference between O'Fallon and London?
Right now O'Fallon is 6 hours behind London. The difference can change when either place changes its clocks; use the comparison tool for a specific date.
What is the time difference between O'Fallon and New York?
Right now O'Fallon is 1 hour behind New York. The difference can change when either place changes its clocks; use the comparison tool for a specific date.