Black Rock in numbers
- Coordinates
- 42.2437, -70.8287
- Elevation
- 13 m above sea level
- Region
- Massachusetts
- Country
- United States, North America
- Capital
- Washington, D.C. — 643 km away
- Same name
- 25 more places in the world share this name
Watch the current local time in Black Rock, Massachusetts, United States, running on the America/New_York time zone (−5).
Black Rock, United States
Tuesday, 3 November 2026
UTC−5 · America/New_York
Local time in Black Rock
UTC−5 · no daylight saving time
Local time in Black Rock, Massachusetts.
Sunrise 6:20 AM Solar noon 11:28 AM Sunset 4:36 PM Daylight 10 h 16 min Night 13 h 44 min Civil twilight 5:51 AM – 5:05 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 is 1 postal code zones in Black Rock.
Black Rock counts hours by America/New_York, which stands at UTC−5. Whether daylight saving is kept: No.
Sunrise falls at 6:20 AM today in Black Rock, with the sun setting at 4:36 PM. That leaves 10 h 16 min of light.
Time in Black Rock applies without change in North Cohasset and Beechwood nearby.