Time in Philadelphia Now
Eastern Daylight Time (EDT) · UTC−4
About Philadelphia
Philadelphia is the largest city in Pennsylvania and one of the most historic in the United States. The Declaration of Independence and the Constitution were both signed here, and Independence Hall and the Liberty Bell draw visitors year-round. Today it is a centre for healthcare, universities, pharmaceuticals and finance, between New York and Washington DC.
The city follows Eastern Time, with Eastern Standard Time (UTC-5) in winter and Eastern Daylight Time (UTC-4) in summer. Philadelphia always shares the same time as New York, Boston and Washington DC, so business along the north-east corridor runs on one clock. It is five hours behind London for most of the year and three hours ahead of the US West Coast.
- Country
- United States of America
- Population
- 1,567,442
- Currency
- USD United States Dollar
- Language
- English
- Dialling code
- +1
- Internet domain
- .us
- Postal code
- 19092-19093, 19099, 191xx
- Continent
- North America
- Capital
- Washington D.C.
- Coordinates
- 39.9526, -75.1652
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Frequently asked questions
What time zone is Philadelphia in?
Philadelphia is in the Eastern Daylight Time time zone (EDT), which is UTC−4.
Does Philadelphia observe daylight saving time?
Yes. Philadelphia observes daylight saving time. Clocks go back 1 hour on 1 November 2026
What is the time difference between Philadelphia and UTC?
Philadelphia is currently UTC−4.
What is the dialling code for Philadelphia?
The international dialling code for Philadelphia is +1.
When is the best time to call Philadelphia from London?
Working hours (9:00–17:00) overlap from 13:00 to 17:00 in London, which is 09:00 to 13:00 in Philadelphia.