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BlogHow it works

PST to JST Converter

Choose a date and a Pacific time to see the time in Tokyo, Osaka or Sapporo. Japan keeps one offset all year; the converter handles the US clock changes.

Pacific Time

PSTPacific Time

JSTJapan Standard Time

––:––

  1. Dec 31, 2025 – Mar 8, 2026PST UTC−8 · JST UTC+9Difference: +17 h
  2. Mar 8, 2026 – Nov 1, 2026PDT UTC−7 · JST UTC+9Difference: +16 h
  3. Nov 1, 2026 – Mar 14, 2027PST UTC−8 · JST UTC+9Difference: +17 h
  4. Mar 14, 2027 – Nov 7, 2027PDT UTC−7 · JST UTC+9Difference: +16 h
  5. Nov 7, 2027 – Dec 31, 2027PST UTC−8 · JST UTC+9Difference: +17 h

Offsets in 2026 – 2027, from the IANA time zone data in your browser's engine

Pacific Time against Japan Standard Time, this year and next: a 17-hour gap in the US winter and a 16-hour gap in the US summer.

Tomorrow in Tokyo

Japan is so far ahead that a Pacific afternoon or evening is already the next day there. A quick method: subtract 7 hours from a PST time, or 8 hours from a PDT time, and move to the next calendar day. 6:00 PM on Monday in Los Angeles becomes 11:00 AM on Tuesday in Tokyo in winter, and 10:00 AM on Tuesday in summer.

Only from midnight to 7:00 AM Pacific (8:00 AM in PDT season) do the two places share the same date.

Pacific to Japan hour table

PST timePST · JSTPDT · JST
12:00 AM5:00 PM4:00 PM
1:00 AM6:00 PM5:00 PM
2:00 AM7:00 PM6:00 PM
3:00 AM8:00 PM7:00 PM
4:00 AM9:00 PM8:00 PM
5:00 AM10:00 PM9:00 PM
6:00 AM11:00 PM10:00 PM
7:00 AM12:00 AM+1 next day11:00 PM
8:00 AM1:00 AM+1 next day12:00 AM+1 next day
9:00 AM2:00 AM+1 next day1:00 AM+1 next day
10:00 AM3:00 AM+1 next day2:00 AM+1 next day
11:00 AM4:00 AM+1 next day3:00 AM+1 next day
12:00 PM5:00 AM+1 next day4:00 AM+1 next day
1:00 PM6:00 AM+1 next day5:00 AM+1 next day
2:00 PM7:00 AM+1 next day6:00 AM+1 next day
3:00 PM8:00 AM+1 next day7:00 AM+1 next day
4:00 PM9:00 AM+1 next day8:00 AM+1 next day
5:00 PM10:00 AM+1 next day9:00 AM+1 next day
6:00 PM11:00 AM+1 next day10:00 AM+1 next day
7:00 PM12:00 PM+1 next day11:00 AM+1 next day
8:00 PM1:00 PM+1 next day12:00 PM+1 next day
9:00 PM2:00 PM+1 next day1:00 PM+1 next day
10:00 PM3:00 PM+1 next day2:00 PM+1 next day
11:00 PM4:00 PM+1 next day3:00 PM+1 next day
Each Pacific hour with the Tokyo time in both US seasons. +1 marks the next day in Japan.

Why only the US changes

Japan Standard Time is UTC+9, tied to the 135° east meridian and generated by NICT. Japan does not use daylight saving. Pacific Time moves between UTC−8 and UTC−7 at 2:00 AM on the second Sunday in March and the first Sunday in November (US Department of Transportation).

Launches, streams and flights

Games, apps and shows from Japan often launch at a round hour in JST, which can land late at night in California. A midnight JST release is 7:00 AM the day before in Los Angeles on PST, or 8:00 AM on PDT. Watch the date in announcements as much as the time.

Flights cross the date line too: a nonstop that leaves Los Angeles around midday arrives in Tokyo in the afternoon of the next day. The Seattle and Vancouver clocks show the Pacific side; for Seoul, see PST to KST.

For regular calls with Japan

  • The usual slot is 4:00–6:00 PM Pacific, the next morning in Tokyo.
  • Fix the meeting in one zone and tell the other side when the US clocks change.
  • Monday morning in Tokyo is Sunday afternoon in California.
  • Starting from Tokyo? Use JST to PST.

PST to JST questions

How many hours ahead of California is Japan?

Japan is 17 hours ahead of California on PST and 16 hours ahead on PDT, which runs from the second Sunday of March to the first Sunday of November.

What is 6:00 PM in Los Angeles in Tokyo?

It is 11:00 AM the next day in Tokyo on PST and 10:00 AM the next day on PDT.

How do I convert Pacific Time to Japan time in my head?

Subtract 7 hours from a PST time, or 8 hours from a PDT time, then move to the next day.

Does Japan observe daylight saving time?

No. Japan has stayed on UTC+9 all year for decades.

Are Japan and Korea on the same time?

Yes. Both use UTC+9, so PST to KST gives the same result.