UTC to PST Converter

UTC (Coordinated Universal Time) is the global time standard used to regulate clocks worldwide. It is the successor to GMT (Greenwich Mean Time) and is not adjusted for Daylight Saving Time — it stays constant year-round. GMT to PST uses the exact same offset as UTC to PST — GMT and UTC are functionally equivalent for everyday time conversion.

All time zones in the world are defined as an offset from UTC. PST is UTC-8, EST is UTC-5, IST is UTC+5:30, and so on. When you see a timestamp labeled UTC or Z (such as 2026-06-02T14:00:00Z), it refers to Coordinated Universal Time.

UTC is used in aviation, military communications, international finance, software systems, and anywhere precise, unambiguous global timekeeping is required.

PST (Pacific Standard Time) is the time zone used on the west coast of the United States and Canada during winter months. It is 8 hours behind UTC, written as UTC-8. States and provinces using PST include California, Oregon, Washington, Nevada, and British Columbia (Canada).

During summer (Daylight Saving Time), PST advances by one hour to become PDT (Pacific Daylight Time, UTC-7). The switch happens on the second Sunday of March (clocks spring forward) and reverts on the first Sunday of November (clocks fall back). Check exact dates for any year at our daylight saving time page.

PST is commonly used in the tech industry — Silicon Valley (San Francisco, San Jose), Seattle (Microsoft, Amazon), and Los Angeles all operate on Pacific Time. This makes UTC-to-PST conversion critical for global scheduling.