Tokyo zone
GMT+9 (GMT+9)
San Francisco zone
PDT (GMT-7)
Difference
16 hours behind Tokyo
Business overlap
No 9-5 overlap
Working hours overlap
Each cell is one hour in Tokyo. Filled cells mark when 9 AM – 5 PM in Tokyo and San Francisco both apply.
0 hours per day
- Tokyo
- GMT+9
- San Francisco
- GMT-7
- Difference
- -16h
- Business overlap
- 0h
Hour-by-hour conversion
Each row shows the matching local time in San Francisco for an hour in Tokyo.
| Tokyo | San Francisco | Day | Window |
|---|---|---|---|
| 12:00 AM | 8:00 AM | previous day | — |
| 1:00 AM | 9:00 AM | previous day | — |
| 2:00 AM | 10:00 AM | previous day | — |
| 3:00 AM | 11:00 AM | previous day | — |
| 4:00 AM | 12:00 PM | previous day | — |
| 5:00 AM | 1:00 PM | previous day | — |
| 6:00 AM | 2:00 PM | previous day | — |
| 7:00 AM | 3:00 PM | previous day | — |
| 8:00 AM | 4:00 PM | previous day | — |
| 9:00 AM | 5:00 PM | previous day | — |
| 10:00 AM | 6:00 PM | previous day | — |
| 11:00 AM | 7:00 PM | previous day | — |
| 12:00 PM | 8:00 PM | previous day | — |
| 1:00 PM | 9:00 PM | previous day | — |
| 2:00 PM | 10:00 PM | previous day | — |
| 3:00 PM | 11:00 PM | previous day | — |
| 4:00 PM | 12:00 AM | same day | — |
| 5:00 PM | 1:00 AM | same day | — |
| 6:00 PM | 2:00 AM | same day | — |
| 7:00 PM | 3:00 AM | same day | — |
| 8:00 PM | 4:00 AM | same day | — |
| 9:00 PM | 5:00 AM | same day | — |
| 10:00 PM | 6:00 AM | same day | — |
| 11:00 PM | 7:00 AM | same day | — |
Best meeting windows
Standard 9 AM – 5 PM hours in Tokyo and San Francisco do not overlap. Plan calls for early Tokyo morning or late Tokyo evening, and rotate the burden between sides.
Tighter overlap is achievable by having the side with later working hours start earlier, or by treating the first and last hours of each side as flexible. The bar above marks every hour where both cities sit inside a 9 AM – 5 PM window.
About converting Tokyo time to San Francisco time
Tokyo follows the Asia/Tokyo time zone (currently GMT+9, GMT+9), while San Francisco follows America/Los_Angeles (currently PDT, GMT-7). San Francisco is 16 hours behind Tokyo right now.
San Francisco observes daylight saving time, while Tokyo does not. The offset between the two cities changes by one hour at the daylight saving transitions.
Daylight saving transitions in 2026
Tokyo
Does not observe daylight saving time.
San Francisco
- Spring forward · Sunday, March 8, 2026
- Fall back · Sunday, November 1, 2026
Reverse this conversion
San Francisco to Tokyo
Open the converter
Plan a meeting between Tokyo and San Francisco
More conversions from Tokyo
Frequently asked questions
- How many hours is Tokyo from San Francisco?
- San Francisco is 16 hours behind Tokyo right now.
- What time is 9:00 AM Tokyo in San Francisco?
- 9:00 AM in Tokyo is 5:00 PM (previous day) in San Francisco.
- What time is 5:00 PM Tokyo in San Francisco?
- 5:00 PM in Tokyo is 1:00 AM in San Francisco.
- When do Tokyo and San Francisco business hours overlap?
- Standard 9 AM - 5 PM working hours in Tokyo and San Francisco do not overlap. You will need an early or late call.
- Does daylight saving time change the difference between Tokyo and San Francisco?
- San Francisco observes daylight saving time while Tokyo does not, so the offset between them changes by one hour twice a year.
Local time page
Time in Tokyo
Local time page
Time in San Francisco