Williamstown in numbers
- Coordinates
- 40.7443, -75.6249
- Elevation
- 132 m above sea level
- Region
- Pennsylvania
- Country
- United States, North America
- Capital
- Washington, D.C. — 238 km away
- Same name
- 25 more places in the world share this name
What time is it in Williamstown, Pennsylvania, United States
The clock above shows the current local time in Williamstown, Pennsylvania, United States, which uses America/New_York (−5).
Williamstown, United States
Wednesday, 11 November 2026
UTC−5 · America/New_York
Local time in Williamstown
UTC−5 · no daylight saving time
Williamstown keeps America/New_York clock_time.
The sun today
Sunrise 6:46 AM Solar noon 11:48 AM Sunset 4:50 PM Daylight 10 h 04 min Night 13 h 56 min Civil twilight 6:17 AM – 5:19 PM
Weather in Williamstown right now
Loading the current weather…
Weather data by Open-Meteo, updated every 30 minutes.
Williamstown and its neighbours
Postal codes
- 01267
- 05679
- 08094
- 13493
- 17098
- 26187
- 41097
- 45897
- 63473
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 Pennsylvania
- Philadelphia 1 573 916
- Pittsburgh 304 391
- Allentown 120 207
- Erie 99 475
- Reading 87 879
- Scranton 77 118
Other places named Williamstown
- Williamstown New Jersey, United States
- Williamstown Victoria, Australia
- Williamstown Massachusetts, United States
- Williamstown Kentucky, United States
- Williamstown West Virginia, United States
Same time zone — America/New_York
- New York City United States
- Brooklyn United States
- Queens United States
- Philadelphia United States
- Manhattan United States
- The Bronx United States
Nearby places
- Emerald — 0.8 km
- Slatington — 1.2 km
- Custer — 1.2 km
- Friedens — 1.3 km
- Borough Of Slatington — 1.6 km
- Walnutport — 2.5 km
Williamstown: clock, sun and surroundings
Williamstown contains 9 postal codes.
Williamstown holds to America/New_York time, which equals UTC−5. Clock adjustment for daylight saving: No.
Daylight in Williamstown today runs from 6:46 AM to 4:50 PM. The stretch measures 10 h 04 min.
The same hours are kept in Williamstown and in nearby Emerald and Slatington.
Questions and answers
- Which time zone designation is used for Williamstown?
- The designation used for Williamstown is America/New_York, with an offset of −5.
- Does the time in Williamstown vary with the season?
- Daylight saving time in Williamstown: No.
- When does light leave Williamstown?
- Light leaves at 4:50 PM.