San Francisco to Tokyo Time Difference

Tokyo is 16 hours ahead of San Francisco. Standard 9 AM–5 PM business hours in San Francisco 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 Francisco 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 Francisco, 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 Francisco.

Tokyo is currently 16 hours ahead of San Francisco.

Standard 9 AM – 5 PM hours in San Francisco 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 Francisco, or a 6–8 PM meeting in Tokyo.

On November 1, 2026, San Francisco shifts for daylight saving. After that, Tokyo will be 17 hours ahead of San Francisco (currently 16 hours ahead of San Francisco). The converter and the tables above always reflect the correct offset for the date you pick.

• San Francisco is currently observing daylight saving time.
• Tokyo does not observe daylight saving time.

Frequently asked questions

Is Tokyo ahead of or behind San Francisco?

Tokyo is 16 hours ahead of San Francisco.

How many hours ahead of San Francisco is Tokyo?

Tokyo is 16 hours ahead of San Francisco.

What time is 9 AM in San Francisco in Tokyo?

9:00 AM in San Francisco is 1:00 AM the next day in Tokyo.

What time is noon in San Francisco in Tokyo?

12:00 PM in San Francisco is 4:00 AM the next day in Tokyo.

What time is 5 PM in San Francisco in Tokyo?

5:00 PM in San Francisco 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 Francisco in Tokyo?

3:00 PM in San Francisco is 7:00 AM the next day in Tokyo.

Is San Francisco currently observing daylight saving time?

San Francisco 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 Francisco and Tokyo observe daylight saving?

On November 1, 2026, San Francisco shifts for daylight saving. After that, Tokyo will be 17 hours ahead of San Francisco (currently 16 hours ahead of San Francisco). 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 Francisco?

San Francisco and Tokyo business hours don't overlap. The closest options are early mornings in San Francisco or late evenings, when one side stretches outside 9–5.

When is the best time to call San Francisco from Tokyo?

Tokyo and San Francisco business hours don't overlap. The closest options are early mornings in Tokyo or late evenings, when one side stretches outside 9–5.

San Francisco (PDT) to Tokyo (JST) — how do I convert quickly?

Add 16 hours to San Francisco 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.

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