Eureka in numbers
- Coordinates
- 40.7214, -89.2729
- Elevation
- 234 m above sea level
- Population
- 5 377
- Region
- Illinois
- Country
- United States, North America
- Capital
- Washington, D.C. — 1064 km away
- Same name
- 67 more places in the world share this name
The local time of Eureka, Illinois, United States is presented here, in line with the America/Chicago zone (−6).
Eureka, United States
Thursday, 12 November 2026
UTC−6 · America/Chicago
Local time in Eureka
UTC−6 · no daylight saving time
Local time in Eureka, Illinois.
Sunrise 6:42 AM Solar noon 11:42 AM Sunset 4:43 PM Daylight 10 h 02 min Night 13 h 58 min Civil twilight 6:12 AM – 5:13 PM
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Weather data by Open-Meteo, updated every 30 minutes.
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.
There are 12 postal code zones in Eureka.
Eureka uses the America/Chicago time zone with a UTC−6 offset. Whether daylight saving time is used: No.
First light in Eureka comes at 6:42 AM today; darkness returns after 4:43 PM. The day gives 10 h 02 min of light.
There is no time difference between Eureka and nearby Enchanted Gardens Mobile Home Park or Cruger.