PDT — Pacific Daylight Time

UTC-7 · Active March–November · Daylight Saving version of PST

PT — Pacific Daylight Time
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PDT UTC-7PDT UTC-7 (DST)

Time Zone Facts

Standard Offset
UTC-7
DST Offset
UTC-7
Standard Abbr
PDT
DST Abbr
PDT
IANA Identifier
America/Los_Angeles
DST Schedule
PDT is the summer name for Pacific Time. During winter, the same states observe PST (UTC-8). PDT shares the same offset as MST (Mountain Standard Time) — which is why Arizona time matches California in summer.

States in PT — Pacific Daylight Time

CaliforniaOregonWashingtonNevadaIdaho (north)

Major Cities in PT

Los AngelesSan FranciscoSeattleLas VegasPortlandSan DiegoPhoenix

Daylight Saving Time

PDT is the summer name for Pacific Time. During winter, the same states observe PST (UTC-8). PDT shares the same offset as MST (Mountain Standard Time) — which is why Arizona time matches California in summer.

Clocks spring forward 1 hour at 2:00 AM on the second Sunday in March, changing from PDT (UTC-7) to PDT (UTC-7).

Clocks fall back 1 hour at 2:00 AM on the first Sunday in November, returning from PDT (UTC-7) to PDT (UTC-7).

Frequently Asked Questions

What is PDT time right now?
PDT (Pacific Daylight Time) is UTC-7. It is the daylight saving version of PST (Pacific Standard Time, UTC-8). PDT is active from the second Sunday in March to the first Sunday in November. During this period, the US West Coast is at UTC-7 — 7 hours behind GMT.
What is the difference between PST and PDT?
PST (Pacific Standard Time) is UTC-8 and is used in winter (November to March). PDT (Pacific Daylight Time) is UTC-7 and is used in summer (March to November). PDT is 1 hour ahead of PST. California, Oregon, and Washington switch from PST to PDT each spring and back in fall.
Is it PST or PDT right now?
From the second Sunday in March to the first Sunday in November, the US West Coast observes PDT (UTC-7). From the first Sunday in November to the second Sunday in March, it observes PST (UTC-8). In 2026: PDT runs from March 8 to November 1. The live clock above shows the current Pacific Time with the correct abbreviation.
Is PDT the same as MST?
Yes. PDT (Pacific Daylight Time, UTC-7) and MST (Mountain Standard Time, UTC-7) share the same UTC offset. This is why Arizona — which stays on MST year-round — effectively has the same time as California in summer, even though they are in different time zones.
How many hours behind is PDT from EST?
PDT (UTC-7) is 2 hours behind EDT (Eastern Daylight Time, UTC-4) during summer when both are in daylight saving mode. In winter, PST (UTC-8) is 3 hours behind EST (UTC-5). So the Pacific–Eastern difference is always either 2 hours (summer) or 3 hours (winter).

Related Time Zones

PST — Pacific Standard TimeEDT — Eastern Daylight TimeCDT — Central Daylight TimeEST — Eastern Standard TimePST to EST ConverterGMT to PST ConverterDaylight Saving Time 2026Time Zone Converter
PDT (Pacific Daylight Time) is UTC-7. Active from the second Sunday in March to the first Sunday in November. Outside this window, Pacific Time zones observe PST (UTC-8).