Union County in numbers
- Coordinates
- 42.8325, -96.6561
- Region
- South Dakota
- Country
- United States, North America
- Capital
- Washington, D.C. — 1703 km away
- Same name
- 16 more places in the world share this name
The present local time in Union County, South Dakota, United States is given below, for the America/Chicago time zone (−6).
Union County, United States
Wednesday, 4 November 2026
UTC−6 · America/Chicago
Local time in Union County
UTC−6 · no daylight saving time
Union County keeps America/Chicago clock_time.
Sunrise 7:06 AM Solar noon 12:11 PM Sunset 5:17 PM Daylight 10 h 11 min Night 13 h 49 min Civil twilight 6:36 AM – 5:47 PM
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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.
People in Union County keep America/Chicago, a zone offset of UTC−6. Seasonal time change: No.
Sunrise time for Union County today is 7:06 AM; sunset time is 5:17 PM. Daylight fills 10 h 11 min.
There is no time difference between Union County and nearby Unorganized Territory Of Richland or Spink.
Union County is covered by 1 postal code.