London ↔ San Francisco
Best Time to Call
Decent overlap available between 16:00 and 19:00 (London time).
Sync London and San Francisco easily. London is 8 hours ahead of San Francisco. Decent overlap available between 16:00 and 19:00 (London time).
Upcoming Time Change
- New York City clocks forward 1h in 11 days Mar 08
💡 Review recurring meetings scheduled during these dates to avoid sync issues.
Meeting Optimizer
Sync Score
3.3/10
-12h Current Time +12h
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Tokyo
13:42 GMT+9
Working
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New York City
23:42 EST
Sleeping
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London
04:42 GMT
Sleeping
Synchronization Context
Syncing between London and San Francisco is challenging due to the 8 hours offset. Teams should prioritize asynchronous communication or specific 'handover' windows.
London Business Pulse
- Culture London business culture is generally formal but collaborative. "Flexi-Fridays" are common in the summer.
- Lunch Break Typically 1:00 PM - 2:00 PM.
- Pro Tip Avoid calling after 4:30 PM on Fridays as many offices wind down early for the weekend. Mid-week (Tuesday to Thursday) between 10 AM and 4 PM is the "Golden Window" for reaching decision-makers. Always start with a brief polite inquiry about their day before diving into business.
San Francisco Business Pulse
- Culture Innovation-focused and casual. Values disruption, speed, and technical excellence.
- Lunch Break 12:30 PM - 1:30 PM.
- Pro Tip Best reached between 10:00 AM and 4:00 PM. Expect a casual, tech-first vibe—informal language and dress are the norm. However, technical competence and speed are non-negotiable. Many in the Bay Area work non-traditional hours, but standard business times remain the safest bet.
Quick Comparison
| Feature | London | San Francisco |
|---|---|---|
| Timezone | Europe/London | America/Los_Angeles |
| Country | UK | USA |
| Coordinates | 51.51, -0.13 | 37.77, -122.42 |
| Population | 9,648,000 | 3,318,000 |