Frequently Asked Questions About Time in Yokohama

Everything You Need to Know About Time in Yokohama

Yokohama, Japan’s second-largest city, operates on Japan Standard Time (JST), which is 9 hours ahead of Coordinated Universal Time (UTC+9). For travelers, remote workers, or anyone coordinating with friends or colleagues in Yokohama from a different time zone—especially from the San Francisco area—understanding the time difference and local quirks is essential. This FAQ covers the most common questions, from DST to business hours. For the live clock, visit the time.yokohama homepage.

1. What is the current time in Yokohama?

You can see the exact current time on the Yokohama live clock. As a rule of thumb, Yokohama is 17 hours ahead of San Francisco during standard time (Pacific Standard Time, UTC-8) and 16 hours ahead during Pacific Daylight Time (UTC-7). For example, when it is 12:00 noon in San Francisco in January, it is 5:00 AM the next day in Yokohama.

2. What time zone does Yokohama use?

Yokohama, like all of Japan, uses Japan Standard Time (JST), which is UTC+9. This time zone applies nationwide without variation. For a deeper dive into JST’s hISTory and why it’s UTC+9, see our Yokohama Time Zone page.

3. Does Yokohama observe Daylight Saving Time (DST)?

No, Japan does not observe Daylight Saving Time. The country experimented with DST after World War II but abolished it in 1952 and has not used it since. This means the time difference between Yokohama and locations that do use DST (like San Francisco) changes twice a year. For more details, check our dedicated Daylight Saving Time in Yokohama page.

4. What is the time difference between Yokohama and San Francisco?

The difference varies depending on the season:

• Standard time (early Nov to mid-March): Yokohama is 17 hours ahead of San Francisco (PST, UTC-8).
• Daylight time (mid-March to early Nov): Yokohama is 16 hours ahead of San Francisco (PDT, UTC-7).

When San Francisco “springs forward,” the gap shrinks by one hour. Our Yokohama vs San Francisco Time Difference page includes a handy conversion table.

5. How do I schedule a meeting between San Francisco and Yokohama?

Because the time difference is large, aim for overlap in the early morning or late evening in San Francisco. For example, 9:00 AM in San Francisco is 1:00 AM (next day) in Yokohama during standard time. A good window is 8:00–10:00 AM San Francisco time, which corresponds to 8:00–10:00 PM in Yokohama (with DST adjustments). Use the time.yokohama live clock to confirm.

6. What are typical business hours in Yokohama?

Most offices in Yokohama operate from 9:00 AM to 5:00 PM or 6:00 PM JST, Monday to Friday. Lunch break is typically 12:00–1:00 PM. Stores and restaurants often open later and close earlier on weekdays but may have extended hours on weekends. For more details, read our Business Hours in Yokohama guide.

7. How does the time difference affect travel from San Francisco to Yokohama?

Flying from San Francisco to Yokohama (via Tokyo’s Narita or Haneda) takes about 11 hours nonstop. With the 16-17 hour time difference, you’ll often arrive the next day. Jet lag can be significant; try to adjust your sleep schedule a few days before departure. Upon arrival, expose yourself to daylight to reset your circadian rhythm.

8. When do sunrise and sunset occur in Yokohama?

Sunrise and sunset times vary throughout the year. In summer (June), sunrise is around 4:30 AM and sunset around 7:00 PM JST. In winter (December), sunrise is around 6:45 AM and sunset around 4:30 PM. For exact daily times, check our Sunrise and Sunset Times in Yokohama page.

9. How can I quickly convert Yokohama time to my local time?

Use the following quick rule of thumb:

Alternatively, add 17 hours (or 16 during DST) to San Francisco time. For other cities, subtract UTC offset accordingly.

10. Has Japan always used the same time zone?

Japan Standard Time was established in 1886. During the post-WWII occupation, Japan briefly used DST (summer time) from 1948 to 1951, but it was scrapped in 1952. Since then, JST has been UTC+9 year-round. Visit the Yokohama Time Zone page for more historical details.

11. Does the time zone differ between Yokohama and Tokyo?

No, Yokohama and Tokyo are in the same time zone (JST, UTC+9). They are only about 30 kilometers apart, so the solar time difference is negligible. Throughout Japan, the entire country uses one time zone.

12. What if I need to know the time in Yokohama when it’s midnight here?

If it’s midnight in San Francisco (PST), it is 5:00 PM in Yokohama (same day) during standard time, or 4:00 PM during DST. This is a great time to catch someone at the end of their workday in Yokohama. Always double-check with the live clock.