California Time Zone & Meeting Planner
Convert PST or PDT to California time, and plan meetings between California and US, European, and Asian business hours. Clock changes are worked out from the date you pick.
Pacific Standard or Daylight Time, and each zone's offset, are worked out for this date, so meetings near a clock change come out right.
PST or PDT in California Right Now
As of Friday, November 13, 2026
California is on Pacific Standard Time (PST, UTC-8) today. The next clock change is Sunday, March 14, 2027 at 2:00 AM: clocks spring forward 1 hour to PDT.
- 2:00 PM PST is 2:00 PM PST on California clocks today.
- 2:00 PM PDT is 1:00 PM PST on California clocks today.
- 6:00 PM PST is 6:00 PM PST on California clocks today.
PST and PDT are the same Pacific Time Zone on two settings of the clock. Whenever a time is quoted as “PST” while California is on daylight time, add one hour to read it on a California wall clock. The converter above does this for any time and date.
Statutory California Standard Time Policies
Legal time mandates established by California Government Code § 6807 and federal law
- National Institute of Standards and Technology: Daylight Saving Time Rules(opens in a new tab) · Effective March 8, 2026
- UK Government Digital Service (GOV.UK): When do the clocks change?(opens in a new tab) · Effective March 29, 2026
US daylight saving time rules (second Sunday in March to first Sunday in November) and UK clock-change dates (last Sunday in March and October), which differ and drive the London offset.
California (Pacific Time) vs. Global Financial Center Offsets
| Global Market / Region | Standard Zone Code | Offset from California | Mutual 9–5 Business Overlap |
|---|---|---|---|
| Mountain (Denver, Phoenix) | MST / MDT (UTC-7) | +1 Hour Ahead | 7 Hours (9 AM – 4 PM Pacific) |
| Central (Chicago, Dallas) | CST / CDT (UTC-6) | +2 Hours Ahead | 6 Hours (9 AM – 3 PM Pacific) |
| Eastern (New York, DC) | EST / EDT (UTC-5) | +3 Hours Ahead | 5 Hours (9 AM – 2 PM Pacific) |
| London / Western Europe | GMT / BST (UTC+0 / +1) | +8 Hours Ahead (+7 for about a week each spring and autumn) | 1 Hour (8 AM – 9 AM Pacific) |
| Tokyo / Japan (JST) | JST (UTC+9) | +16 Hours Ahead | Evening Shift (4 PM – 7 PM Pacific) |
How Cross-Zone Working Hours Are Computed
Mathematical formulas and step-by-step arithmetic breakdown
Worked Example Calculation: 10:00 AM Mid-Morning Sync
Consider a California team scheduling a 10:00 AM Pacific Daylight Time call on Wednesday, July 15, 2026 with counterparts in New York, London, and Tokyo:
- California Local Time: 10:00 AM (Pacific Daylight Time (PDT, UTC-7))
- Eastern Time (New York): 1:00 PM (+3 hr offset; inside core business hours)
- London (UK Time): 6:00 PM (+8 hr offset; end of the London workday)
- Tokyo (JST): 2:00 AM (+16 hr offset; the next day)
- Mutual US Working Window: 9:00 AM – 2:00 PM Pacific aligns with 12:00 PM – 5:00 PM Eastern.
Travel Coordination: Cross-referencing travel times across California highway corridors? Try our California driving mileage calculator.
California-Specific Nuance: Proposition 7 & Federal Law
Why California still changes its clocks despite voter approval to stay on permanent DST
The Proposition 7 Stalemate
In 2018, California voters approved Proposition 7 by a decisive 60% margin, giving the California State Legislature the power to move California to permanent Daylight Saving Time. However, California cannot make this switch independently.
Under the federal Uniform Time Act of 1966 (15 U.S.C. § 260a), states are legally permitted to opt out of Daylight Saving Time into permanent Standard Time (as Hawaii and most of Arizona have done). However, states are explicitly prohibited from adopting permanent Daylight Saving Time without an affirmative act of the United States Congress. Unless Congress passes federal legislation (such as the proposed Sunshine Protection Act), California remains legally bound to change its clocks twice each year.
Frequently Asked Questions About California Time
Rules regarding Pacific Time and clock transition dates
On Friday, November 13, 2026, California is on Pacific Standard Time (PST, UTC-8). The next clock change is Sunday, March 14, 2027 at 2:00 AM: clocks spring forward 1 hour to PDT.
Today, 2:00 PM PST reads 2:00 PM PST on California clocks, the same time, because California is on PST. And 2:00 PM PDT reads 1:00 PM PST. Use the converter above for any other time or date.
PDT is Pacific Daylight Time, UTC-7, the clock California uses from the second Sunday in March to the first Sunday in November. The rest of the year California is on PST, Pacific Standard Time, UTC-8. California does not skip a day: both abbreviations name the same Pacific Time Zone.
California is UTC-8 on Pacific Standard Time (PST) and UTC-7 on Pacific Daylight Time (PDT). Today it is UTC-8 (PST).
California is located entirely within the Pacific Time Zone. The state operates on Pacific Standard Time (PST, UTC-8) from the first Sunday in November until the second Sunday in March, and on Pacific Daylight Time (PDT, UTC-7) from the second Sunday in March until the first Sunday in November.
The optimal window for scheduling meetings between California (Pacific Time) and New York (Eastern Time) is between 9:00 AM and 2:00 PM Pacific, which directly corresponds to 12:00 PM and 5:00 PM Eastern. This provides a 5-hour mutual window within standard 9 AM to 5 PM business working hours.
In November 2018, California voters overwhelmingly passed Proposition 7 (60% to 40%), authorizing the state legislature to transition California to year-round Daylight Saving Time. However, under the federal Uniform Time Act of 1966, states can only exempt themselves into permanent Standard Time; adopting permanent Daylight Saving Time requires an act of the U.S. Congress (such as the federal Sunshine Protection Act), which has not yet been enacted into law.
London is normally 8 hours ahead of California, in both summer and winter, because the UK and California change clocks in the same direction. The exception is the week or two when they change on different dates: the UK moves its clocks on the last Sunday of March and October, California on the second Sunday of March and the first Sunday of November. In those weeks London is only 7 hours ahead (for example October 25 to 31, 2026, and March 14 to 27, 2027). Tokyo (JST) does not change clocks: it is 16 hours ahead of California on PDT and 17 hours ahead on PST, so a morning California meeting lands the next day in Tokyo.
Clocks “spring forward” one hour at 2:00 AM on the second Sunday in March, and “fall back” one hour at 2:00 AM on the first Sunday in November. The next change is Sunday, March 14, 2027 at 2:00 AM: clocks spring forward 1 hour to PDT.
Arizona opted out of the Uniform Time Act in 1968 and remains on Mountain Standard Time (MST, UTC-7) year-round. As a result, during the summer months when California is on PDT (UTC-7), California and Arizona share the exact same time.
Between 8:00 AM and 9:00 AM Pacific provides the only window where California (morning), New York (midday), and London/Western Europe (late afternoon) are all within normal working hours.