PST to UTC Time Zone Converter
PST to UTC converts US Pacific Time to Coordinated Universal Time — the global reference clock that never changes. Pacific sits 8 hours behind UTC in winter and 7 hours behind in summer, because Pacific observes daylight saving and UTC doesn't. The converter picks the right gap for whatever date you choose.
Enter a date and time to convert.
Daylight saving is applied automatically for the date you pick. Labels like PST/EST name the zone (Pacific/Eastern); the real abbreviation shifts to PDT/EDT during daylight saving, and gmt here means London (GMT in winter, BST in summer) while utc stays fixed.
The time difference
UTC is ahead of US Pacific Time: 8 hours ahead in winter and 7 hours ahead in summer. UTC is a fixed reference and never shifts, so the whole change comes from the Pacific side. When Pacific springs forward in March, the gap narrows from 8 to 7 hours; when it falls back in November, it widens again.
A worked example
Take 9:00 AM Pacific. On January 15, 2026 that's 5:00 PM UTC (17:00), and on July 15, 2026 it's 4:00 PM UTC (16:00). The one-hour swing between the two is daylight saving at work — same 9 AM start, different UTC result depending on the season.
Daylight saving & the abbreviation caveat
The slug says PST, the winter name for Pacific. From spring to fall the zone is really PDT, which is why locals just say "PT." UTC is different — it observes no daylight saving and never changes, so it has no summer form. That's the whole reason the gap moves across the year: one side shifts and the other stays put. The converter tracks the Pacific switch for the date you pick, so the result is always right.
When you'll use it
UTC is the neutral clock for anything global: server logs and timestamps, scheduling a video call across several countries, reading flight times or launch windows, and coordinating open-source or online events where everyone agrees on UTC to avoid confusion.
Frequently asked questions
How far behind UTC is Pacific Time?
Pacific is 8 hours behind UTC in winter (PST) and 7 hours behind in summer (PDT). To go from Pacific to UTC you add those hours — the gap shifts by 1 hour when US daylight saving starts and ends.
Why does the PST to UTC gap change during the year?
UTC never changes, but Pacific Time springs forward an hour in March and falls back in November. So the difference is 8 hours in winter and 7 hours in summer.
What is 9 AM Pacific in UTC?
5:00 PM UTC in winter and 4:00 PM UTC in summer. UTC uses a 24-hour clock, so those are 17:00 and 16:00.