Convert JST to PST
See the time difference between Japan Standard Time and Pacific Standard Time, compare hours, and plan calls or meetings fast.
How Conversion Works
Convert Japan Standard Time (UTC+9) to Pacific Standard Time (UTC-8) using the current offset difference between the two zones. The converter automatically accounts for daylight saving changes when Pacific time switches between standard and daylight time.
Hour-by-Hour Time Table
Use the visual hour-by-hour table to compare JST and PST across the day and quickly spot overlapping working hours. Review side-by-side times, then export selected results with ICS download or add them to Google Calendar or Gmail.
Schedule Meetings Across Zones
Find suitable meeting times between Japan and Pacific time with automatic timezone adjustment for future dates. DST transitions and historical offset changes are tracked using the IANA timezone database for accurate scheduling.
How to Convert JST to PST
Looking for Pitcairn Standard Time? See /time-converter/pst-pitcairn-time-zone.
Open the JST to PST page: Go to https://www.xconvert.com/time-converter/jst-to-pst-converter to compare JST (Japan Standard Time, UTC+9) with PST (Pacific Standard Time, UTC-8) on a visual timeline. The page is useful when you are scheduling a call with a client in California, coordinating a product launch between Tokyo and the U.S. West Coast, or planning support coverage between Japan and North America.
Add relevant comparison cities: Click + Add City and add cities that commonly work with Japan and Pacific Standard Time teams, such as Tokyo for headquarters coordination, Los Angeles for media and entertainment work, San Francisco for software and startup teams, or Vancouver for cross-border operations in Canada. This makes it easier to compare working hours for industries like gaming, semiconductors, e-commerce, logistics, and international customer support.
Select a meeting window on the grid: Click Select, then drag across the colored timeline to highlight a time range in purple; you can resize it with the side handles or move it by dragging the center. For example, if you drag from 9:00 JST to 12:00 JST, the grid shows 16:00 PST to 19:00 PST on the previous day, which helps confirm that a Tokyo morning meeting lands in the late afternoon and evening on the U.S. Pacific side.
Export and share the result: After selecting a range, use the export options for ICS download, Google Calendar, Gmail, Copy to clipboard, or Share link. This is practical when a Tokyo operations team needs to send a confirmed handoff window to partners in the United States, Canada, or Mexico so each person receives the meeting in their own local calendar without manual conversion.
Understanding the JST to PST Time Difference
JST (Japan Standard Time, UTC+9) is 17 hours ahead of Pacific Standard Time (UTC-8), and Pacific Standard Time is 17 hours behind Japan Standard Time. That means a daytime schedule in Japan usually maps to the previous day in Pacific Standard Time, which is the main planning issue for cross-Pacific meetings, overnight handoffs, and support rotations.
The conversion pattern is straightforward with the standard-time examples: 9:00 JST = 16:00 PST (previous day), 12:00 JST = 19:00 PST (previous day), 15:00 JST = 22:00 PST (previous day), and 18:00 JST = 1:00 PST. These examples show why Tokyo morning and afternoon work often overlaps with the prior afternoon, evening, or late night on the U.S. and Canadian Pacific coast.
Japan Standard Time does not observe daylight saving time, so JST stays fixed all year. Pacific Standard Time is a standard-time abbreviation, and its daylight time counterpart is PDT, so the JST-to-PST difference applies specifically when Pacific locations are on standard time; the difference changes during daylight saving periods because Pacific regions switch away from Pacific Standard Time for part of the year.
Pacific Standard Time is used in parts of Canada, Mexico, and the United States, while JST is used in Japan. For practical coordination, this matters for companies running engineering, manufacturing, gaming, cloud infrastructure, and supply-chain operations between Tokyo and Pacific coast hubs such as Seattle, San Francisco, Los Angeles, Vancouver, and Baja California business centers.
Best Times for Calls and Meetings Between JST and PST
JST (Japan Standard Time, UTC+9) and Pacific Standard Time (UTC-8) have a wide 17-hour gap, so the most workable meeting windows usually happen when Japan starts the day and Pacific Standard Time is still in the previous afternoon or evening. This is why many distributed teams choose Tokyo morning meetings for product reviews, release coordination, and customer escalations involving West Coast stakeholders.
A practical overlap appears in the examples from 9:00 JST to 12:00 JST, which maps to 16:00 PST to 19:00 PST on the previous day. That window can work for end-of-day discussions in Pacific Standard Time and start-of-day planning in Japan, especially for software releases, ad campaign approvals, game publishing, semiconductor supply updates, and international account management.
Another usable point is 15:00 JST = 22:00 PST (previous day), but that is already late for Pacific Standard Time participants and usually better for urgent issues than routine meetings. By 18:00 JST = 1:00 PST, the overlap becomes impractical for most business calls, so teams often avoid Japan evening meetings unless they are handling incident response, overnight operations, or critical launch support.
For recurring meetings, many companies standardize around Japan morning slots because they are easier to sustain than asking Tokyo teams to stay online late every day. This is especially relevant for remote engineering teams, e-commerce operations, cloud support, and multinational vendors serving customers across Japan and the Pacific coast of North America.
Frequently Asked Questions
What is the time difference between JST and PST?
JST (Japan Standard Time, UTC+9) is 17 hours ahead of Pacific Standard Time (UTC-8). In the other direction, Pacific Standard Time is 17 hours behind Japan Standard Time, so a normal business morning in Tokyo typically falls on the previous afternoon or evening in Pacific time.
When is 9 AM JST in PST?
9:00 JST = 16:00 PST on the previous day. This is a useful benchmark for scheduling because a Tokyo morning meeting at 9 AM lands at 4 PM Pacific Standard Time the day before, which often works for end-of-day check-ins with West Coast teams.
Does the JST to PST difference change during daylight saving time?
The 17-hour difference applies between Japan Standard Time and Pacific Standard Time. Japan Standard Time does not observe DST, while Pacific Standard Time has a daylight counterpart called PDT, so the JST-to-PST relationship changes when Pacific locations are observing daylight time instead of standard time.
What is the best meeting time between JST and PST?
A strong working window is 9:00 JST to 12:00 JST, which corresponds to 16:00 PST to 19:00 PST on the previous day. This gives Japan a morning slot and Pacific Standard Time participants a late-afternoon to early-evening slot, making it one of the most practical options for recurring business calls, sprint handoffs, and client updates.
When is 12 PM JST in PST?
12:00 JST = 19:00 PST on the previous day. This is often still workable for Pacific Standard Time participants, especially for short status meetings, sales follow-ups, or launch approvals that need same-cycle communication with teams in Japan.
When is 3 PM JST in PST?
15:00 JST = 22:00 PST on the previous day. That timing is usually too late for routine meetings in Pacific Standard Time, but it can still be used for urgent production issues, release management, or cross-border incident response when teams need real-time coordination.
Is PST Pacific Standard Time or Pitcairn Standard Time?
On this page, PST means Pacific Standard Time (UTC-8). PST can also mean Pitcairn Standard Time (UTC-8), and if you need that version, use /time-converter/pst-pitcairn-time-zone to avoid mixing the two meanings when scheduling.
Which countries use JST and PST?
JST is used in Japan. Pacific Standard Time is used in parts of Canada, Mexico, and the United States, which is why JST-to-PST conversion is common for trade, technology, logistics, media, and customer support teams working across the Pacific.