Philadelphia, United States · UTC-4
Convert time from Philadelphia
Philadelphia is in the Eastern Time timezone (EST/UTC-5 in winter, EDT/UTC-4 in summer), observing daylight saving time in line with the US East Coast.
On July 4, 1776, the Second Continental Congress adopted the Declaration of Independence in Philadelphia. The exact hour is not recorded with certainty, but it was afternoon. The bell in the State House steeple rang out over the city. Time, in a sense, restarted for a new republic.
Philadelphia follows Eastern Time, UTC-5 in winter and UTC-4 during daylight saving. The city shares this clock with New York to the northeast and Washington DC to the southwest. That corridor of political and financial power runs on one synchronized schedule, though each city has built its own character within it.
seasons, markets, and city character
The city sits at about 40 degrees north, giving it four distinct seasons. Summer arrives early and humid, winter cold enough to freeze the Delaware River in severe years. Philadelphians know what each season costs and what it gives: outdoor markets in June, Reading Terminal Market warmth in February.
The Liberty Bell now sits in a glass pavilion where visitors can see it any hour of the day, though officially it only rings on significant national occasions. Its original ringing in 1776 was tied to a specific moment. Most great moments are.
9am in Philadelphia is 2pm in London, useful for the many academic and medical institutions here that collaborate internationally.
Sources
Read more about time in United States →Same time as Philadelphia
Compare Philadelphia with
Questions about time in Philadelphia
- What timezone is Philadelphia in?
- Philadelphia is in Eastern Time (ET), using the IANA timezone
America/New_York. The standard UTC offset is UTC-5 (EST) in winter and UTC-4 (EDT) during daylight saving time. - Does Philadelphia observe daylight saving time?
- Yes. Philadelphia observes daylight saving time, shifting from UTC-5 (standard time) to UTC-4 in summer.
- What is the current UTC offset for Philadelphia?
- Philadelphia is currently at UTC-4. It is currently observing daylight saving time.
- What is the time difference between Philadelphia and London?
- Philadelphia is currently 5 hours behind London.
- What is the time difference between Philadelphia and Los Angeles?
- Philadelphia is currently 3 hours ahead of Los Angeles.
- What is the time difference between Philadelphia and Tokyo?
- Philadelphia is currently 13 hours behind Tokyo. Tokyo does not observe daylight saving time, so this gap changes by 1 hour when Philadelphia transitions to/from DST.
- What is the IANA timezone name for Philadelphia?
- The IANA timezone database identifier for Philadelphia is
America/New_York. Use this string in programming languages and APIs: JavaScript (`new Intl.DateTimeFormat('en-US', { timeZone: 'America/New_York' })`), Python (`pytz.timezone('America/New_York')`), or any IANA-compatible library.