Naperville, Illinois, United States (City)     Current Local Time: In 24-hour Notation: Fri., Jan. 27, 2023 06:12:59 A.M. CST Fri., Jan. 27, 2023 06:12:59 CST Local Time Zone: America/Chicago Currently Observing: Standard Time Universal Coordinated Time: Fri., Jan. 27, 2023 12:12:59 UTC/GMT

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