PST vs PDT Time Difference
Comparing Pacific Standard Time (PST) and Pacific Daylight Time (PDT). Live side-by-side clocks, interactive slider, and affected regions.
Switch Comparison Pair:
PSTPacific Standard Time
9:23:32 AM
Official civil atomic time
PDTPacific Daylight Time
9:23:32 AM
Official civil atomic time
Direct Answer in Plain English
Pacific Daylight Time (PDT, UTC-7) is 1 hour ahead of Pacific Standard Time (PST, UTC-8). PDT is observed during spring and summer, while PST is observed during autumn and winter.
Offset: 1 hour(s) difference
Interactive Time Difference Slider
Slide to instantly convert matching hours between both timezones.
12:00 PM (PST) = 1:00 PM (PDT)
12 AM4 AM8 AM12 PM (Noon)4 PM8 PM11 PM
PST12:00 PM
PDT1:00 PM
Key Cities & States in PST:
Observed November to March in Los Angeles, San Francisco, Seattle, Las Vegas, Vancouver.
Key Cities & States in PDT:
Observed March to November in the exact same West Coast cities.
Difference Between PST and PDT in Plain English
PST and PDT represent the US West Coast (California, Washington, Oregon, Nevada) in winter and summer respectively. When Daylight Saving Time begins in March, people set their clocks forward one hour, switching from PST to PDT.
Daylight Saving Time (DST) Transitions
PST is UTC-8 and PDT is UTC-7. They alternate cyclically twice each year.
Frequently Asked Questions About PST vs PDT
Everything you need to know about comparing PST and PDT.
Google SERP Verified
Pacific Daylight Time (PDT, UTC-7) is 1 hour ahead of Pacific Standard Time (PST, UTC-8). PDT is observed during spring and summer, while PST is observed during autumn and winter.
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