Rocky Hill in numbers
- Coordinates
- 40.3998, -74.6343
- Elevation
- 26 m above sea level
- Population
- 690
- Region
- New Jersey
- Country
- United States, North America
- Capital
- Washington, D.C. — 265 km away
- Same name
- 18 more places in the world share this name
Watch the current local time in Rocky Hill, New Jersey, United States, running on the America/New_York time zone (−5).
Rocky Hill, United States
Monday, 2 November 2026
UTC−5 · America/New_York
Local time in Rocky Hill
UTC−5 · no daylight saving time
Rocky Hill keeps America/New_York clock_time.
Sunrise 6:30 AM Solar noon 11:43 AM Sunset 4:56 PM Daylight 10 h 26 min Night 13 h 34 min Civil twilight 6:02 AM – 5:24 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.
Rocky Hill is mapped by 3 postal codes.
The name of the time zone in Rocky Hill is America/New_York, and it runs UTC−5. Daylight saving time: No.
Today, Rocky Hill has first light at 6:30 AM and last light at 4:56 PM. Daylight lasts 10 h 26 min.
Rocky Hill, Kingston and Griggstown all run on one and the same time.