Instant time conversion · Japan to United States
When it is 8 AM in Fukuoka (Japan Standard Time, GMT+9), it is 4 PM in San Diego (Pacific Daylight Time, PDT).San Diego is 16 hours behind Fukuoka.
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.
8 AM Fukuoka time (GMT+9) equals 4 PM in San Diego (PDT) — the previous day.
San Diego is 16 hours behind Fukuoka. Fukuoka uses Japan Standard Time (GMT+9, UTC+9) and San Diego uses Pacific Daylight Time (PDT, UTC-7).
Yes — 8 AM in Fukuoka corresponds to 4 PM in San Diego, which is within standard business hours (9 AM–5 PM). This is a good time for international calls.
To convert Fukuoka time to San Diego time, add (-16) hours. For example, 8 AM GMT+9 = 4 PM PDT (previous day).
Other hours — Fukuoka to San Diego
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