Japan
United States
Osaka to Seattle Time Difference
Seattle is 16 hours behind Osaka
Osaka vs Seattle — At a Glance
Osaka to Seattle — Hour-by-Hour
About Osaka and Seattle
Osaka (population: 2.7M) is known for street food capital of Japan, Osaka Castle, and the 2025 World Expo host. Seattle (population: 0.74M) is known for Amazon, Microsoft, Boeing, coffee culture, and the Pacific Northwest.
Business Hours Overlap
The 16-hour gap means Osaka and Seattle have almost no standard-hours overlap. Early morning calls from Osaka or late evening calls from Seattle are the most practical options.
Calling Between Cities
With 16 hours between Osaka (+81) and Seattle (+1), finding a mutually convenient calling time is tricky. Consider scheduling calls in advance rather than calling spontaneously.
Currency
Osaka uses JPY while Seattle uses USD. Check current exchange rates before making payments or transferring funds between the two cities.
Language
Osaka primarily speaks Japanese, while Seattle speaks English. For business communication, English is commonly used as a bridge language in international settings.
Use our world clock tool to compare Osaka and Seattle visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between Osaka and Seattle?
Seattle, United States is 16 hours behind Osaka, Japan. Osaka is in the Asia/Tokyo timezone (UTC+9) and Seattle is in the America/Los Angeles timezone (UTC-7).
When it's noon in Osaka, what time is it in Seattle?
When it's 12:00 PM (noon) in Osaka, it's 8:00 PM in Seattle.
What is the best time to call Seattle from Osaka?
The best time to call Seattle from Osaka is during the overlapping business hours. When it's 9 AM in Osaka, it's 5:00 PM in Seattle. Aim for late morning to early afternoon in Osaka for the best chance of reaching someone during working hours.
What currency does Seattle use?
Seattle, United States uses USD. Osaka uses JPY. You will need to check the current exchange rate for transactions between the two.
What language is spoken in Seattle?
The primary language in Seattle is English. English is widely used for international business communication.
How do I dial Seattle from Osaka?
To call Seattle from Osaka, dial your international access code followed by +1 and the local number. Osaka uses country code +81 and Seattle uses +1.
