Philadelphia is 3 hours ahead of Los Angeles. Philadelphia uses Eastern Time (ET) while Los Angeles uses Pacific Time (PT). When it's 12:00 PM in Philadelphia, it's 9:00 AM in Los Angeles.
Both cities observe daylight saving time on the same schedule, so this 3-hour difference remains constant year-round.
Best calling time: 12:00 PM - 5:00 PM Philadelphia time. This corresponds to 9:00 AM - 2:00 PM in Los Angeles, covering Pacific morning business hours.
Philadelphia and Los Angeles are both major American cities with significant healthcare, education, and entertainment industries. Direct flights take about 5.5 hours.