Convert JST to PST
See the JST to PST time difference, compare hours side by side, and schedule calls or meetings across Japan and Pacific time.
JST to PST Conversion
Convert Japan Standard Time (UTC+9) to Pacific Standard Time (UTC-8) with the current 17-hour difference shown clearly. The converter updates automatically so you can match times across Japan and Pacific time regions.
Hour-by-Hour Time Table
Use the visual grid and hour-by-hour table to compare JST and PST across the day. Export selected times with ICS download or send them to Google Calendar and Gmail for quick scheduling.
Meeting Planning and DST
Find suitable meeting times by checking overlapping business hours and date changes between JST and PST. DST transitions and historical timezone changes are tracked automatically using the IANA timezone database.
How to Convert JST to PST
Open the JST to PST converter: Visit https://www.xconvert.com/time-converter/jst-to-pst-converter to load a visual comparison grid with JST and PST already positioned for side-by-side viewing. This is useful when you are scheduling a call between Tokyo and the U.S. West Coast, coordinating a game launch across Japan and California, or planning support coverage between teams working in Japan Standard Time and Pacific Standard Time.
Add comparison cities for your workflow: Click + Add City and search for cities that matter to your schedule, such as Tokyo for Japan-based headquarters, Los Angeles for West Coast media and entertainment teams, or Vancouver for Canadian operations that also use PST in standard time. This helps if you work with Japanese manufacturers, Pacific coast logistics partners, or distributed software teams that need to compare Japan with North American offices in one grid.
Select a time range on the grid: Click Select, then drag across the colored timeline in the JST row to highlight a meeting window 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 makes it easy to confirm that a Tokyo morning meeting lands in the late afternoon and early evening on the U.S. Pacific side.
Export and share the selected time: 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 product team needs to send a calendar hold to partners in California, or when an operations manager wants everyone to receive the meeting in their own local calendar without manually rechecking the conversion.
Understanding the JST to PST Time Difference
JST is Japan Standard Time, UTC+9, while PST is Pacific Standard Time, UTC-8. JST is 17 hours ahead of PST, which means PST is 17 hours behind JST. In practical scheduling terms, a daytime hour in Japan usually maps to the previous day in Pacific Standard Time.
The conversion examples show this clearly. 9:00 JST = 16:00 PST (previous day), 12:00 JST = 19:00 PST (previous day), and 15:00 JST = 22:00 PST (previous day). Even 18:00 JST = 1:00 PST, which shows how a late afternoon or early evening slot in Japan can move into the very early morning on the Pacific side.
JST does not observe daylight saving time, so Japan stays on the same UTC offset all year. PST, however, is a standard-time abbreviation, and its daylight saving counterpart is PDT. That means the JST-to-PST difference applies specifically when Pacific locations are on standard time; during the months when Pacific regions switch to daylight saving time and use PDT instead of PST, the difference changes and you should use the PDT version of the converter for accurate planning.
JST is used in Japan, while PST is used in parts of the United States, Canada, and Mexico, and the abbreviation also appears in the Philippines in some contexts. For business users, this matters because meetings with Tokyo often involve West Coast sectors such as technology in California, trans-Pacific shipping, gaming, electronics, and media production that depend on precise day-shift and handoff timing.
Best Times for Calls and Meetings Between JST and PST
The biggest scheduling challenge between JST and PST is the 17-hour gap, because standard office hours in Japan often fall on the previous afternoon or evening in Pacific Standard Time. Using the examples, 9:00 JST = 16:00 PST (previous day) and 12:00 JST = 19:00 PST (previous day), so a Tokyo morning meeting can work well for Pacific teams that are still online late in the afternoon or early evening.
A practical overlap for live calls is often the Japan morning to early afternoon window. For example, 9:00 JST to 15:00 JST converts to 16:00 PST to 22:00 PST on the previous day, which can suit cross-border product reviews, agency check-ins, or launch coordination when the Pacific team is willing to meet late in the day. This is especially common for companies handling Japan-U.S. releases in software, e-commerce, semiconductors, and digital entertainment.
If the Japan side schedules later in the day, the Pacific side quickly moves into overnight hours. The example 18:00 JST = 1:00 PST shows why Tokyo evening meetings are usually difficult for standard business communication with California, British Columbia, or other Pacific offices on standard time. For recurring meetings, teams often get the best results by anchoring the call in the Tokyo morning, since that preserves a usable previous-day afternoon window for PST participants.
This timing pattern is also important for travel and operations. A traveler flying from Tokyo and coordinating airport pickup, hotel check-in, or a business arrival with contacts in Los Angeles or Vancouver can use the grid to see whether a Japan daytime message will reach someone during working hours or after business close on the Pacific side.
Frequently Asked Questions
What is the time difference between JST and PST?
JST is 17 hours ahead of PST, and PST is 17 hours behind JST. Because of that large gap, the Pacific time equivalent for a Japan business-hour meeting often falls on the previous day, which is critical when booking calls, sending invites, or setting deadlines.
When is 9 AM JST in PST?
9:00 JST = 16:00 PST on the previous day. This is one of the most useful conversions for remote teams because a Tokyo morning start can align with a late afternoon slot in Pacific Standard Time, making it workable for same-cycle project updates and end-of-day reviews.
When is 12 PM JST in PST?
12:00 JST = 19:00 PST on the previous day. That means a noon meeting in Japan lands in the early evening for Pacific participants, which can still work for urgent coordination but may be outside normal office hours for some teams.
When is 3 PM JST in PST?
15:00 JST = 22:00 PST on the previous day. This is generally too late for a standard business meeting on the Pacific side, so it is better suited to asynchronous handoffs, status updates, or teams that already operate extended support hours.
When is 6 PM JST in PST?
18:00 JST = 1:00 PST. A Tokyo early-evening meeting reaches Pacific Standard Time in the overnight period, so it is usually not practical for live calls unless one side is intentionally working outside regular hours.
Does the difference between JST and PST change during DST?
Yes. JST does not observe daylight saving time, but PST is specifically the standard-time label, and its daylight saving counterpart is PDT. During the months when Pacific locations switch to daylight saving time, the JST-to-PST relationship no longer applies as written, so users should convert against PDT instead of PST for those dates.
What is the best meeting time between JST and PST?
The most practical meeting window is usually morning in Japan, because it maps to the previous afternoon or evening in Pacific Standard Time. Based on the examples, 9:00 JST to 12:00 JST becomes 16:00 PST to 19:00 PST on the previous day, which is often the best compromise for Tokyo teams working with California, Vancouver, or other Pacific-region partners.
Which countries use JST and PST?
JST is used in Japan. PST is used in parts of the United States, Canada, and Mexico, and the abbreviation also appears in the Philippines in some contexts, which is helpful to know when coordinating multinational support, logistics, or customer-facing operations across the Pacific.