Costa Mesa, California, United States (City)     Current Local Time: In 24-hour Notation: Sat., May. 16, 2026 11:20:55 P.M. PDT Sat., May. 16, 2026 23:20:55 PDT Local Time Zone: America/Los Angeles Currently Observing: Daylight Savings Time Universal Coordinated Time: Sun., May. 17, 2026 06:20:55 UTC/GMT

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