Time Difference Between South San Francisco and Tokyo
Tokyo is 16 hours ahead South San Francisco.
United States
South San Francisco
America/Los_Angeles · UTC-7
Japan
Tokyo
Asia/Tokyo · UTC+9
Best Times to Meet
Hours where standard working time (9 AM – 6 PM) overlaps in both South San Francisco and Tokyo.
South San Francisco
5:00 PM
Tokyo
9:00 AM
South San Francisco to Tokyo — 24-Hour Conversion
Each row shows the equivalent local time in Tokyo for an hour in South San Francisco. Working-hours rows (9–18) are highlighted.
| South San Francisco | Tokyo | Match |
|---|---|---|
| Workday in Tokyo | ||
| Workday in Tokyo | ||
| Off hours | ||
| Off hours | ||
| Off hours | ||
| Off hours | ||
| Off hours | ||
| Off hours | ||
| +1 day | Off hours | |
| +1 day | Workday in South San Francisco | |
| +1 day | Workday in South San Francisco | |
| +1 day | Workday in South San Francisco | |
| +1 day | Workday in South San Francisco | |
| +1 day | Workday in South San Francisco | |
| +1 day | Workday in South San Francisco | |
| +1 day | Workday in South San Francisco | |
| +1 day | Workday in South San Francisco | |
| +1 day | Best for meetings | |
| +1 day | Workday in Tokyo | |
| +1 day | Workday in Tokyo | |
| +1 day | Workday in Tokyo | |
| +1 day | Workday in Tokyo | |
| +1 day | Workday in Tokyo | |
| +1 day | Workday in Tokyo |
Frequently Asked Questions
What is the time difference between South San Francisco and Tokyo?
Tokyo, Japan (UTC+9) is 16 hours ahead South San Francisco, United States (UTC-7).
What is the best time to schedule a meeting between South San Francisco and Tokyo?
The best meeting times overlap when both cities are within standard working hours (9 AM – 6 PM). The full hour-by-hour table on this page lists every overlap window.
Does daylight saving time change the difference between South San Francisco and Tokyo?
Yes — when one city observes daylight saving time and the other does not, the gap shifts by an hour. The conversion table on this page reflects the current offset, including any active DST.
When it is 9 AM in South San Francisco, what time is it in Tokyo?
Use the conversion table on this page — every hour in South San Francisco is mapped to its equivalent local time in Tokyo, including day shift markers when the date differs.