Castle Rock in numbers
- Coordinates
- 44.9644, -103.4240
- Elevation
- 957 m above sea level
- Region
- South Dakota
- Country
- United States, North America
- Capital
- Washington, D.C. — 2273 km away
- Same name
- 10 more places in the world share this name
The time now in Castle Rock, South Dakota, United States is shown here, following the America/Denver time zone (−7).
Castle Rock, United States
Sunday, 8 November 2026
UTC−7 · America/Denver
Local time in Castle Rock
UTC−7 · no daylight saving time
What the clock shows right now in Castle Rock.
Sunrise 6:43 AM Solar noon 11:39 AM Sunset 4:34 PM Daylight 9 h 52 min Night 14 h 08 min Civil twilight 6:12 AM – 5:06 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.
The sun will rise at 6:43 AM and set at 4:34 PM in Castle Rock today. Daylight amounts to 9 h 52 min.
The same local time applies in Castle Rock, Butte County and Unorganized Territory Of East Butte.
The postal breakdown of Castle Rock runs to 5 codes.
Time in Castle Rock runs on America/Denver, which is UTC−7. Does daylight saving time apply here? No.