Time zone · Americas
PDT
Pacific Daylight Time
Pacific Daylight Time is the bright, forward-shifting rhythm of the West Coast's peak hours — linking California, British Columbia, and Baja California in aligned daylight when productivity, travel, and cultural exchange reignite each spring, then settling back to standard as the seasons turn.
Saturday, May 30, 2026
Current offset
UTC-07:00
Daylight · PDT
Daylight saving
Active
Reverts 1 Nov 2026
IANA zones
3
3 observe DST, 0 don't
DST offset
—
No summer variant
About PDT
Standard time, with a summer shift.
Pacific Daylight Time is the bright, forward-shifting rhythm of the West Coast's peak hours — linking California, British Columbia, and Baja California in aligned daylight when productivity, travel, and cultural exchange reignite each spring, then settling back to standard as the seasons turn.
IANA zones · the technical identifiers
The 3 zones that resolve to PDT.
For software, always store the IANA identifier — never the abbreviation alone. The database keeps these zones distinct because their rules can, and historically did, diverge.
Cities currently on PDT
The same hour, city by city.
1 city · all UTC-07:00
Where PDT is used
3 countries.
Same offset · UTC-07:00
Other zones at UTC-07:00 right now.
These named zones share PDT's offset today. When daylight saving rules differ, they drift apart for part of the year.
Frequently asked questions
Common questions about PDT, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].
- Which countries share Pacific Daylight Time?
- PDT spans three countries: the United States (Los Angeles and California coast), Canada (Vancouver and British Columbia), and Mexico (Tijuana and Baja California border region).
- What is DST in Pacific Daylight Time?
- Pacific Daylight Time (PDT) is the daylight saving adjustment — clocks spring forward one hour from Pacific Standard Time to add more usable daylight in evenings, then fall back in November.
- Why does Los Angeles set the standard for PDT?
- America/Los_Angeles is the representative anchor. As North America's largest Pacific timezone city, its shift dates define when PDT officially begins and ends across all three member zones.
- Is currently PDT or PST for these zones?
- Currently, all three zones — Los Angeles, Vancouver, and Tijuana — are on PDT (UTC-07:00), actively observing daylight saving time.
- Why do all US west coast cities stay on same time?
- Federal uniform time law ensures all US Pacific Zone cities shift identically, avoiding the chaos that staggered transitions would cause for air travel, broadcasting, and interstate commerce.
- Why is Tijuana synchronized with San Diego's time?
- Tijuana deliberately matches San Diego and Los Angeles time to simplify cross-border business, media sharing, and daily commuting across the world's busiest international land border.
- How does PDT interact with Mexico's time zones?
- Only Baja California in Mexico observes North American DST and PDT. The rest of Mexico follows its own daylight schedule, making Tijuana a unique Pacific-border outlier.
- Is Vancouver on PDT too?
- Yes — Vancouver and British Columbia share the identical PDT schedule with the US, vital for Pacific shipping lanes and seamless cross-border transit.
- Couldn't they avoid DST using time zone math?
- Even without DST, the Pacific coast would still align with UTC-08:00 standard time. The seasonal shift exists to balance evening daylight across latitude, not fix a geographic offset problem.
Free · Developer API
Time, as JSON.
Every IANA time zone with live offsets, DST status, and the countries and cities that use them — clean, dependable JSON. Sign up free and get an API key in seconds.
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