About the time in Philadelphia

Philadelphia is a city in USA. It uses the America/New_York time zone, which is currently UTC-4 — that is, -4 hours from Coordinated Universal Time. Philadelphia observes daylight saving time, so its UTC offset shifts by one hour between summer and winter.

Compared with other major cities right now, Philadelphia is same time of New York and 5 hours behind of London. The table above updates live, so the differences you see always reflect current daylight saving rules on both sides.

What time zone is Philadelphia in?

Philadelphia follows the America/New_York time zone (UTC-4). All clocks on this page are driven by the official IANA time zone database, the same source used by operating systems and airlines worldwide.

Does Philadelphia observe daylight saving time?

Yes — clocks shift by one hour between summer and winter, and the times on this page adjust automatically on the changeover dates.

Sunrise and sunset in Philadelphia

Today's sunrise and sunset above are calculated astronomically for Philadelphia's coordinates (39.95°, -75.17°) and shown in local Philadelphia time. They shift a little every day through the year and jump by an hour on daylight saving changeover dates.

How is this clock kept accurate?

The time shown is your device clock converted into Philadelphia's time zone using your browser's built-in IANA database. If your device clock is correct, the time above is correct — no server round-trips, nothing to install.