Eureka in numbers
- Coordinates
- 45.7694, -99.6196
- Elevation
- 575 m above sea level
- Population
- 844
- Region
- South Dakota
- Country
- United States, North America
- Capital
- Washington, D.C. — 1999 km away
- Same name
- 67 more places in the world share this name
What time is it in Eureka, South Dakota, United States
This page shows what the clocks read right now in Eureka, South Dakota, United States, in the America/Chicago zone (−6).
Eureka, United States
Sunday, 1 November 2026
UTC−6 · America/Chicago
Local time in Eureka
UTC−6 · no daylight saving time
Eureka keeps America/Chicago clock_time.
The sun today
Sunrise 7:20 AM Solar noon 12:23 PM Sunset 5:27 PM Daylight 10 h 07 min Night 13 h 53 min Civil twilight 6:48 AM – 5:58 PM
Weather in Eureka right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Eureka and its neighbours
Postal codes
- 48833
- 54934
- 57437
- 59917
- 61530
- 63025
- 67045
- 84628
- 89316
- 95501
- 95502
- 95503
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 South Dakota
- Sioux Falls 171 544
- Rapid City 73 569
- Aberdeen 28 102
- Brookings 23 657
- Watertown 22 073
- Mitchell 15 669
Other places named Eureka
- Eureka California, United States
- Eureka Missouri, United States
- Eureka Illinois, United States
- Eureka Kansas, United States
- Eureka Montana, United States
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
- Unorganized Territory Of West Mcpherson — 4.7 km
- Hillsview — 12.6 km
- Greenway — 17.1 km
- Madra — 19.4 km
- Artas — 19.5 km
- Hosmer — 24.0 km
Local time details for Eureka
Today's daylight in Eureka begins at 7:20 AM and finishes at 5:27 PM. The total is 10 h 07 min.
The time you see for Eureka is also correct for Unorganized Territory Of West Mcpherson and Hillsview.
Within Eureka, postal codes number 12.
Time in Eureka runs on America/Chicago, which is UTC−6. Does daylight saving time apply here? No.
Questions and answers
- What time zone setting should I choose for Eureka?
- Choose America/Chicago for Eureka, with an offset of −6.
- Are daylight saving rules used in Eureka?
- Daylight saving time in Eureka: No.
- When does light leave Eureka?
- Light leaves at 5:27 PM.