Offset
The time difference between Osaka and San Francisco is 16 hours.
Osaka (JST) is ahead of San Francisco (PDT).
JST: UTC+9
PDT: UTC-7
San Francisco is currently observing daylight saving time; Osaka is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Osaka and San Francisco don't overlap on the same weekday. San Francisco is 16 hours behind Osaka.
Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Japan
- New Year's DayThu, Jan 1
- Coming of Age DayMon, Jan 12
- Foundation DayWed, Feb 11
- The Emperor's BirthdayMon, Feb 23
- Vernal Equinox DayFri, Mar 20
- Shōwa DayWed, Apr 29
- Constitution Memorial DayWed, May 6
- Greenery DayMon, May 4
- Children's DayTue, May 5
- Marine DayMon, Jul 20
- Mountain DayTue, Aug 11
- Respect for the Aged DayMon, Sep 21
- Autumnal Equinox DayWed, Sep 23
- Sports DayMon, Oct 12
- Culture DayTue, Nov 3
- Labour Thanksgiving DayMon, Nov 23
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
About these zones
Osaka uses Japan Standard Time (JST). To call Japan, dial +81.
San Francisco uses Pacific Time (PST, or PDT). To call United States, dial +1.
San Francisco is approximately 5,350 miles northeast of Osaka.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Osaka | San Francisco | Day |
|---|---|---|
| 12:00 am | 8:00 am | -1 day |
| 1:00 am | 9:00 am | -1 day |
| 2:00 am | 10:00 am | -1 day |
| 3:00 am | 11:00 am | -1 day |
| 4:00 am | 12:00 pm | -1 day |
| 5:00 am | 1:00 pm | -1 day |
| 6:00 am | 2:00 pm | -1 day |
| 7:00 am | 3:00 pm | -1 day |
| 8:00 am | 4:00 pm | -1 day |
| 9:00 am | 5:00 pm | -1 day |
| 10:00 am | 6:00 pm | -1 day |
| 11:00 am | 7:00 pm | -1 day |
| 12:00 pm | 8:00 pm | -1 day |
| 1:00 pm | 9:00 pm | -1 day |
| 2:00 pm | 10:00 pm | -1 day |
| 3:00 pm | 11:00 pm | -1 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 |
Daylight saving time
San Francisco observes daylight saving time; Osaka does not. The offset between the two zones changes when San Francisco transitions: on Sunday, November 1, 2026, clocks fall back from PDT to PST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 4:46 AM
- Sunset
- 7:09 PM
- Day length
- 14h 22m
- Sunrise
- 5:49 AM
- Sunset
- 8:29 PM
- Day length
- 14h 39m
Daylight overlap: 7h 42m — 4:46 AM–12:29 PM in Osaka (12:46 PM–8:29 PM in San Francisco). Both locations are in daylight during this window.
Cities in these zones
Other cities in Japan Standard Time
Other cities in Pacific Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Japan Standard Time
- HND
- NRT
- ITM
- KIX
- UKB
- NGO
- NKM
- CTS
- OKD
- FUK
Airports in Pacific Time
- BUR
- HHR
- LAX
- LGB
- SNA
- CLD
- SAN
- TIJ
- OAK
- SFO
Related conversions
Common conversions
- What is 9:00 am Osaka in San Francisco?
- 9:00 am Osaka is 5:00 pm San Francisco, the previous day.
- What is 12:00 pm Osaka in San Francisco?
- 12:00 pm Osaka is 8:00 pm San Francisco, the previous day.
- What is 12:30 pm Osaka in San Francisco?
- 12:30 pm Osaka is 8:30 pm San Francisco, the previous day.
- What is 2:00 pm Osaka in San Francisco?
- 2:00 pm Osaka is 10:00 pm San Francisco, the previous day.
- What is 5:00 pm Osaka in San Francisco?
- 5:00 pm Osaka is 1:00 am San Francisco.
- What is 11:30 pm Osaka in San Francisco?
- 11:30 pm Osaka is 7:30 am San Francisco.