Japan
United States
Tokyo to San Francisco Time Difference
San Francisco is 16 hours behind Tokyo
Tokyo vs San Francisco — At a Glance
Tokyo to San Francisco — Hour-by-Hour
About Tokyo and San Francisco
Tokyo (population: 13.9M) is known for the world's largest metropolitan economy, Shibuya Crossing, anime culture, and Toyota. San Francisco (population: 0.87M) is known for Silicon Valley, the Golden Gate Bridge, venture capital, and the global tech industry.
Business Hours Overlap
The 16-hour gap means Tokyo and San Francisco have almost no standard-hours overlap. Early morning calls from Tokyo or late evening calls from San Francisco are the most practical options.
Calling Between Cities
With 16 hours between Tokyo (+81) and San Francisco (+1), finding a mutually convenient calling time is tricky. Consider scheduling calls in advance rather than calling spontaneously.
Currency
Tokyo uses JPY while San Francisco uses USD. Check current exchange rates before making payments or transferring funds between the two cities.
Language
Tokyo primarily speaks Japanese, while San Francisco speaks English. For business communication, English is commonly used as a bridge language in international settings.
Use our world clock tool to compare Tokyo and San Francisco visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between Tokyo and San Francisco?
San Francisco, United States is 16 hours behind Tokyo, Japan. Tokyo is in the Asia/Tokyo timezone (UTC+9) and San Francisco is in the America/Los Angeles timezone (UTC-7).
When it's noon in Tokyo, what time is it in San Francisco?
When it's 12:00 PM (noon) in Tokyo, it's 8:00 PM in San Francisco.
What is the best time to call San Francisco from Tokyo?
The best time to call San Francisco from Tokyo is during the overlapping business hours. When it's 9 AM in Tokyo, it's 5:00 PM in San Francisco. Aim for late morning to early afternoon in Tokyo for the best chance of reaching someone during working hours.
What currency does San Francisco use?
San Francisco, United States uses USD. Tokyo uses JPY. You will need to check the current exchange rate for transactions between the two.
What language is spoken in San Francisco?
The primary language in San Francisco is English. English is widely used for international business communication.
How do I dial San Francisco from Tokyo?
To call San Francisco from Tokyo, dial your international access code followed by +1 and the local number. Tokyo uses country code +81 and San Francisco uses +1.
