Phoenix is 1 hour ahead of San Diego during standard time (November to March). San Diego uses Pacific Time (PT) while Phoenix uses Mountain Standard Time (MST, UTC-7). When it's 12:00 PM in San Diego, it's 1:00 PM in Phoenix.
Arizona does not observe daylight saving time. During San Diego's daylight saving time (March to November), both cities share the same time as San Diego moves to UTC-7 while Phoenix stays at UTC-7.
Best calling time: 9:00 AM - 5:00 PM works year-round. During standard time adjust by 1 hour; during daylight saving time both cities are synchronized.
San Diego and Phoenix are neighboring Sun Belt cities with strong connections. Many San Diegans travel to Phoenix for lower cost of living, while Phoenicians head to San Diego for the beach. The drive takes about 5 hours.