What time is 1 AM in Osaka in San Diego?
Instant time conversion · Japan to United States
When it's 1 AM in Osaka (GMT+9)…
Osaka to San Diego — Time Conversion
When it is 1 AM in Osaka (Japan Standard Time, GMT+9), it is 9 AM in San Diego (Pacific Daylight Time, PDT).San Diego is 16 hours behind Osaka.
Use the table above to see the equivalent time in San Diego and other major cities worldwide. Click any row to open the full hour page for that destination.
All Osaka hours → San Diego
Frequently Asked Questions
What time is 1 AM in Osaka in San Diego?
1 AM Osaka time (GMT+9) equals 9 AM in San Diego (PDT) — the previous day.
What is the time difference between Osaka and San Diego?
San Diego is 16 hours behind Osaka. Osaka uses Japan Standard Time (GMT+9, UTC+9) and San Diego uses Pacific Daylight Time (PDT, UTC-7).
Is 1 AM Osaka a good time to call San Diego?
Yes — 1 AM in Osaka corresponds to 9 AM in San Diego, which is within standard business hours (9 AM–5 PM). This is a good time for international calls.
How do I convert time from Osaka to San Diego?
To convert Osaka time to San Diego time, add (-16) hours. For example, 1 AM GMT+9 = 9 AM PDT (previous day).
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