UnichronoTime zone converter
JST to PST
Pacific Time is 17 hours behind Japan Standard Time in January, when the clocks read JST (UTC+9) and PST (UTC−8), and 16 hours behind in July, when they read JST (UTC+9) and PDT (UTC−7).
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JST to PST, hour by hour
Each hour of the day in Japan Standard Time, and the time in Pacific Time at that moment.
| JST | PST / PDT, January | PST / PDT, July |
|---|---|---|
| 12:00 am | 7:00 am (day before) | 8:00 am (day before) |
| 1:00 am | 8:00 am (day before) | 9:00 am (day before) |
| 2:00 am | 9:00 am (day before) | 10:00 am (day before) |
| 3:00 am | 10:00 am (day before) | 11:00 am (day before) |
| 4:00 am | 11:00 am (day before) | 12:00 pm (day before) |
| 5:00 am | 12:00 pm (day before) | 1:00 pm (day before) |
| 6:00 am | 1:00 pm (day before) | 2:00 pm (day before) |
| 7:00 am | 2:00 pm (day before) | 3:00 pm (day before) |
| 8:00 am | 3:00 pm (day before) | 4:00 pm (day before) |
| 9:00 am | 4:00 pm (day before) | 5:00 pm (day before) |
| 10:00 am | 5:00 pm (day before) | 6:00 pm (day before) |
| 11:00 am | 6:00 pm (day before) | 7:00 pm (day before) |
| 12:00 pm | 7:00 pm (day before) | 8:00 pm (day before) |
| 1:00 pm | 8:00 pm (day before) | 9:00 pm (day before) |
| 2:00 pm | 9:00 pm (day before) | 10:00 pm (day before) |
| 3:00 pm | 10:00 pm (day before) | 11:00 pm (day before) |
| 4:00 pm | 11:00 pm (day before) | 12:00 am |
| 5:00 pm | 12:00 am | 1:00 am |
| 6:00 pm | 1:00 am | 2:00 am |
| 7:00 pm | 2:00 am | 3:00 am |
| 8:00 pm | 3:00 am | 4:00 am |
| 9:00 pm | 4:00 am | 5:00 am |
| 10:00 pm | 5:00 am | 6:00 am |
| 11:00 pm | 6:00 am | 7:00 am |
When the gap changes in 2026 and 2027
| From | To | Difference |
|---|---|---|
| Thu 1 Jan 2026 | Sat 7 Mar 2026 | Pacific Time is 17 hours behind Japan Standard Time |
| Sun 8 Mar 2026 | Sat 31 Oct 2026 | Pacific Time is 16 hours behind Japan Standard Time |
| Sun 1 Nov 2026 | Sat 13 Mar 2027 | Pacific Time is 17 hours behind Japan Standard Time |
| Sun 14 Mar 2027 | Sat 6 Nov 2027 | Pacific Time is 16 hours behind Japan Standard Time |
| Sun 7 Nov 2027 | and after | Pacific Time is 17 hours behind Japan Standard Time |
Working hours overlap
When 9 am – 5 pm on both sides meet, in each side's own time.
| January | July | |
|---|---|---|
| Japan Standard Time | 9:00 am – 10:00 am (1 hour) | No overlap |
| Pacific Time | 4:00 pm – 5:00 pm (1 hour) | No overlap |
About these abbreviations
- JST: Japan Standard Time, UTC+9 all year.
- PST: US Pacific Time (Los Angeles). In summer it is PDT; people often say PST all year, and this page follows the clock, not the label.
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