What Time is it in California Right Now?
Live California clock showing Pacific Time for Los Angeles, San Francisco, San Diego and all of California. California is 8 hours behind the UK (GMT) and 7 hours behind during BST. Updated every second.
About California Time Zone
California operates on Pacific Time — PST (UTC-8) in winter and PDT (UTC-7) during daylight saving. All major California cities use the same timezone: Los Angeles, San Francisco, San Diego and Sacramento. The gap with the UK is 8 hours in winter (GMT) and 7 hours in summer (BST), because the UK and California switch their clocks on different dates each spring.
Frequently Asked Questions
About California time and Pacific Time zones
What time is it in California right now?
The current local California time is shown live above, updated every second. California uses Pacific Time (America/Los_Angeles timezone). California is 8 hours behind the UK in winter and 7 hours behind during British Summer Time (BST, UTC+1).
What timezone is California in?
California is in the Pacific Time zone (America/Los_Angeles). It uses Pacific Standard Time (PST, UTC-8) in winter and Pacific Daylight Time (PDT, UTC-7) during daylight saving. All major California cities — Los Angeles, San Francisco, San Diego and Sacramento — share this timezone.
How many hours behind the UK is California?
California is 8 hours behind the UK when the UK is on GMT (UTC+0). When the UK is on British Summer Time (BST, UTC+1), California is 7 hours behind. The gap changes because the UK and the US switch clocks on different Sundays each spring and autumn.
What is the best time to call California from the UK?
To reach California during business hours (9am–5pm California time), call from the UK between 5pm and 1am UK time in winter (GMT), or between 4pm and midnight during British Summer Time (BST). Always check the live clock above for the current California time before calling.
Best Time to Call California from the UK
The best window to call California from the UK during business hours is 5:00pm–6:00pm UK time (GMT), when it is between 9:00am and 10:00am in California. During UK summer (BST), the window shifts to 4:00pm–6:00pm UK time. California business hours are typically 9:00am – 5:00pm local time, Monday to Friday.
| UK Time (GMT) | California Local Time | In Office Hours? |
|---|---|---|
| 9:00am | 1:00am | ✗ |
| 10:00am | 2:00am | ✗ |
| 11:00am | 3:00am | ✗ |
| 12:00pm | 4:00am | ✗ |
| 1:00pm | 5:00am | ✗ |
| 2:00pm | 6:00am | ✗ |
| 3:00pm | 7:00am | ✗ |
| 4:00pm | 8:00am | ✗ |
| 5:00pm | 9:00am | ✓ |
California observes Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) in summer. The USA and UK change clocks on different Sundays, so for 1–2 weeks each spring and autumn the gap is temporarily 7 or 9 hours rather than the usual 8 or 7.
UK & California — Key Connections
- ✈ Direct flights from London to Los Angeles and San Francisco take approximately 10–11 hours — several airlines operate daily services.
- 👥 California is home to a large British expat community, particularly in Los Angeles (entertainment) and the San Francisco Bay Area (technology).
- 💻 Silicon Valley has deep ties with British technology: DeepMind, ARM and many UK-founded startups have major California offices.
- 🎬 Hollywood employs a significant number of British actors, directors, writers and crew — the UK and California film industries are closely intertwined.
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