This PST to JST converter turns any time in Pacific Standard Time (PST) into Japan Standard Time (JST), using your device clock so daylight saving is applied automatically. JST is 17 hours ahead of PST when both zones are on standard time, and 16 hours ahead during the summer months when clocks have shifted. PST is UTC−8 (PDT: UTC−7); JST is UTC+9.
PST covers Los Angeles, San Francisco, Seattle; JST covers Tokyo, Osaka. Because only PST observes daylight saving time, the difference is not constant through the year. The tables below show both cases, and the converter at the top always uses the rule in force on the date you pick.
PST and JST UTC offsets
PST
UTC−8
Pacific Standard Time
PDT UTC−7 from March 8 to November 1, 2026
JST
UTC+9
Japan Standard Time
No daylight saving time
PST to JST conversion table (standard time)
| PST | JST |
|---|---|
| 12 am | 5 pm |
| 3 am | 8 pm |
| 6 am | 11 pm |
| 8 am | 1 amnext day |
| 9 am | 2 amnext day |
| 10 am | 3 amnext day |
| 11 am | 4 amnext day |
| 12 pm | 5 amnext day |
| 1 pm | 6 amnext day |
| 2 pm | 7 amnext day |
| 3 pm | 8 amnext day |
| 4 pm | 9 amnext day |
| 5 pm | 10 amnext day |
| 6 pm | 11 amnext day |
| 8 pm | 1 pmnext day |
| 10 pm | 3 pmnext day |
PST to JST during daylight saving
Between the dates listed above, the difference is 16 hours instead of 17 hours.
| PST/PDT | JST |
|---|---|
| 12 am | 4 pm |
| 3 am | 7 pm |
| 6 am | 10 pm |
| 8 am | 12 amnext day |
| 9 am | 1 amnext day |
| 10 am | 2 amnext day |
| 11 am | 3 amnext day |
| 12 pm | 4 amnext day |
| 1 pm | 5 amnext day |
| 2 pm | 6 amnext day |
| 3 pm | 7 amnext day |
| 4 pm | 8 amnext day |
| 5 pm | 9 amnext day |
| 6 pm | 10 amnext day |
| 8 pm | 12 pmnext day |
| 10 pm | 2 pmnext day |
Frequently asked questions
What is the time difference between PST and JST?
JST is 17 hours ahead of PST on standard time. During daylight saving the gap changes to 16 hours. That comes from the UTC offsets: PST is UTC−8 and JST is UTC+9. For example, 9 am PST = 2 am JST the next day, and in summer 9 am PST = 1 am JST the next day.
Is JST ahead of or behind PST?
JST is 17 hours ahead of PST, so when it is noon in PST it is 5 am in JST the next day. Ahead means the clock there already shows a later time; a call at 5 pm PST lands at 10 am JST.
Does PST or JST observe daylight saving time in 2026?
PST switches to PDT (UTC−7) on March 8 and back on November 1 in 2026. JST keeps UTC+9 all year. Between those dates the difference in the table above shifts by an hour, which is the usual cause of missed calls in spring and autumn.
What is the best time for a meeting between PST and JST?
Office hours (9 am to 5 pm) do not overlap at all with a 17 hours difference. The least painful options are early morning in PST or early evening in JST; for example 8 am PST = 1 am JST the next day and 6 pm PST = 11 am JST the next day. Rotate the inconvenient slot between the two sides for recurring calls.
Which cities use PST and JST?
PST (Pacific Standard Time) is used in Los Angeles, San Francisco, Seattle, Vancouver. JST (Japan Standard Time) is used in Tokyo, Osaka. Some cities inside a zone skip daylight saving, noted in parentheses, so their offset matches only part of the year.