Time Difference Between Pennsylvania and California

3 Hours Standard, 2 Hours During DST Overlap

Pennsylvania (Eastern Time) and California (Pacific Time) have a variable time difference due to Daylight Saving Time transitions.

Standard Difference (Most of Year)

• 3 hours when both observe DST (mid-March to early November)
• Example: 12:00 PM in Philadelphia = 9:00 AM in Los Angeles

Transition Periods (2-Hour Gap)

Two brief windows annually when only one zone has switched:

• Mid-March (2 weeks): PA springs forward first; CA follows 2 weeks later → 2-hour difference
• Early November (1 week): CA falls back first; PA follows 1 week later → 2-hour difference

Quick Reference

For precise scheduling, use time zone converters (timeanddate.com, Google Calendar) that auto-handle DST transitions.