Time difference
San Diego to Tokyo Time Difference
Tokyo is 16 hours ahead of San Diego — when it's 12:00 PM in San Diego, it's 4:00 AM the next day in Tokyo. (San Diego (America/Los_Angeles, PDT); Tokyo (Asia/Tokyo, JST).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.
Tokyo is 16 hours ahead of San Diego. Standard 9 AM–5 PM business hours in San Diego and Tokyo do not overlap, so a live call needs one side outside normal hours. Clocks change on November 1, 2026, which briefly shifts the gap between San Diego and Tokyo — the converter on this page always reflects the correct offset for the date you pick.
- When it's 9:00 AM in San Diego, it's 1:00 AM the next day in Tokyo.
- When it's 9:00 AM in Tokyo, it's 5:00 PM the previous day in San Diego.
Tokyo is currently 16 hours ahead of San Diego.
Interactive converter
12:00PM
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Best times to meet
Standard 9 AM – 5 PM hours in San Diego and Tokyo do not overlap. The least-bad options are an early start in one city or a late evening call in the other — for example a 7–8 AM meeting in San Diego, or a 6–8 PM meeting in Tokyo.
Quick conversion table
| San Diego | Tokyo |
|---|---|
| 12 AM | 4:00 PM |
| 1 AM | 5:00 PM |
| 2 AM | 6:00 PM |
| 3 AM | 7:00 PM |
| 4 AM | 8:00 PM |
| 5 AM | 9:00 PM |
| 6 AM | 10:00 PM |
| 7 AM | 11:00 PM |
| 8 AM | 12:00 AM (next day) |
| 9 AM | 1:00 AM (next day) |
| 10 AM | 2:00 AM (next day) |
| 11 AM | 3:00 AM (next day) |
| 12 PM | 4:00 AM (next day) |
| 1 PM | 5:00 AM (next day) |
| 2 PM | 6:00 AM (next day) |
| 3 PM | 7:00 AM (next day) |
| 4 PM | 8:00 AM (next day) |
| 5 PM | 9:00 AM (next day) |
| 6 PM | 10:00 AM (next day) |
| 7 PM | 11:00 AM (next day) |
| 8 PM | 12:00 PM (next day) |
| 9 PM | 1:00 PM (next day) |
| 10 PM | 2:00 PM (next day) |
| 11 PM | 3:00 PM (next day) |
Daylight saving
On November 1, 2026, San Diego shifts for daylight saving. After that, Tokyo will be 17 hours ahead of San Diego (currently 16 hours ahead of San Diego). The converter and the tables above always reflect the correct offset for the date you pick.
- San Diego is currently observing daylight saving time.
- Tokyo does not observe daylight saving time.
Frequently asked questions
- Is Tokyo ahead of or behind San Diego?
- Tokyo is 16 hours ahead of San Diego.
- How many hours ahead of San Diego is Tokyo?
- Tokyo is 16 hours ahead of San Diego.
- What time is 9 AM in San Diego in Tokyo?
- 9:00 AM in San Diego is 1:00 AM the next day in Tokyo.
- What time is noon in San Diego in Tokyo?
- 12:00 PM in San Diego is 4:00 AM the next day in Tokyo.
- What time is 5 PM in San Diego in Tokyo?
- 5:00 PM in San Diego is 9:00 AM the next day in Tokyo. Useful for end-of-day handoffs between the two offices.
- What time is 3 PM in San Diego in Tokyo?
- 3:00 PM in San Diego is 7:00 AM the next day in Tokyo.
- Is San Diego currently observing daylight saving time?
- San Diego is currently observing daylight saving time (summer time).
- Is Tokyo currently observing daylight saving time?
- Tokyo does not observe daylight saving time — its UTC offset stays the same all year.
- Do San Diego and Tokyo observe daylight saving?
- On November 1, 2026, San Diego shifts for daylight saving. After that, Tokyo will be 17 hours ahead of San Diego (currently 16 hours ahead of San Diego). The converter and the tables above always reflect the correct offset for the date you pick.
- When is the best time to call Tokyo from San Diego?
- San Diego and Tokyo business hours don't overlap. The closest options are early mornings in San Diego or late evenings, when one side stretches outside 9–5.
- When is the best time to call San Diego from Tokyo?
- Tokyo and San Diego business hours don't overlap. The closest options are early mornings in Tokyo or late evenings, when one side stretches outside 9–5.
- San Diego (PDT) to Tokyo (JST) — how do I convert quickly?
- Add 16 hours to San Diego local time to get Tokyo local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.
Other conversions
- New York to San Diego
- London to San Diego
- Dubai to San Diego
- San Diego to Singapore
- Los Angeles to San Diego
- San Diego to Sydney
- Paris to San Diego
- Mumbai to San Diego
- Hong Kong to San Diego
- San Diego to San Francisco