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Timezone Prime

PST to JST converter

Convert Pacific Time (PST/PDT) to Japan Standard Time (JST), with daylight saving applied for the exact date you pick.

From

Tue, Oct 27

To

Wed, Oct 28 Next day

PDT 9 to 5 JST 9 to 5

From zone
Pacific Daylight Time
Offset and clock
UTC−7 Daylight saving time
IANA name
America/Los_Angeles
To zone
Japan Standard Time
Offset and clock
UTC+9 No daylight saving time
IANA name
Asia/Tokyo

JST is 16 hours ahead of PDT.

Time difference
JST is 16 hours ahead of PDT for most of the year (238 days in 2026). The gap is 17 hours for about 18 weeks in 2026.
Meeting window
Working days of 9 AM to 5 PM do not overlap. The least disruptive slot is around 4:30 PM PDT, which is 8:30 AM (next day) JST while PDT and JST apply.
Daylight saving
Pacific Time changes its clocks twice a year; Japan Standard Time does not.

The same conversion works for every city on these clocks, such as California to Japan, California to Tokyo and Los Angeles to Japan.

Where PST and JST apply

Shaded areas follow the official zone boundaries, so a country split across zones is split here too. Hover or tap a region for its local time.

  • Pacific Time
  • Japan Standard Time
  • Same UTC offset right now, different zone rules

Drag to pan. Ctrl and scroll, or pinch, to zoom. Boundaries: timezone-boundary-builder, © OpenStreetMap contributors

Hour by hour

Every hour of Tuesday, October 27, 2026, side by side. Days with a clock change show 23 or 25 rows.

Shaded rows fall inside working hours in both places.

Hourly comparison of the two time zones. Choose a time to load it in the converter.
Los Angeles (PDT) Tokyo (JST) Working hours
12:00 AM 4:00 PM
1:00 AM 5:00 PM
2:00 AM 6:00 PM
3:00 AM 7:00 PM
4:00 AM 8:00 PM
5:00 AM 9:00 PM
6:00 AM 10:00 PM
7:00 AM 11:00 PM
8:00 AM 12:00 AM next day
9:00 AM 1:00 AM next day
10:00 AM 2:00 AM next day
11:00 AM 3:00 AM next day
12:00 PM 4:00 AM next day
1:00 PM 5:00 AM next day
2:00 PM 6:00 AM next day
3:00 PM 7:00 AM next day
4:00 PM 8:00 AM next day
5:00 PM 9:00 AM next day
6:00 PM 10:00 AM next day
7:00 PM 11:00 AM next day
8:00 PM 12:00 PM next day
9:00 PM 1:00 PM next day
10:00 PM 2:00 PM next day
11:00 PM 3:00 PM next day

PST to JST conversion table

Every hour of the Pacific Time day, plus the common half hours, and their JST equivalents. The second column covers the part of the year when the clocks are on a different gap.

PST to JST conversion table
Pacific Time JST 16 h ahead, most of the year (238 days in 2026) JST 17 h ahead, about 18 weeks in 2026
12:00 AM 4:00 PM5:00 PM
1:00 AM 5:00 PM6:00 PM
2:00 AM 6:00 PM7:00 PM
3:00 AM 7:00 PM8:00 PM
4:00 AM 8:00 PM9:00 PM
5:00 AM 9:00 PM10:00 PM
6:00 AM 10:00 PM11:00 PM
7:00 AM 11:00 PM12:00 AM (next day)
8:00 AM 12:00 AM (next day)1:00 AM (next day)
9:00 AM 1:00 AM (next day)2:00 AM (next day)
9:30 AM 1:30 AM (next day)2:30 AM (next day)
10:00 AM 2:00 AM (next day)3:00 AM (next day)
10:30 AM 2:30 AM (next day)3:30 AM (next day)
11:00 AM 3:00 AM (next day)4:00 AM (next day)
11:30 AM 3:30 AM (next day)4:30 AM (next day)
12:00 PM 4:00 AM (next day)5:00 AM (next day)
12:30 PM 4:30 AM (next day)5:30 AM (next day)
1:00 PM 5:00 AM (next day)6:00 AM (next day)
1:30 PM 5:30 AM (next day)6:30 AM (next day)
2:00 PM 6:00 AM (next day)7:00 AM (next day)
2:30 PM 6:30 AM (next day)7:30 AM (next day)
3:00 PM 7:00 AM (next day)8:00 AM (next day)
3:30 PM 7:30 AM (next day)8:30 AM (next day)
4:00 PM 8:00 AM (next day)9:00 AM (next day)
4:30 PM 8:30 AM (next day)9:30 AM (next day)
5:00 PM 9:00 AM (next day)10:00 AM (next day)
5:30 PM 9:30 AM (next day)10:30 AM (next day)
6:00 PM 10:00 AM (next day)11:00 AM (next day)
7:00 PM 11:00 AM (next day)12:00 PM (next day)
8:00 PM 12:00 PM (next day)1:00 PM (next day)
9:00 PM 1:00 PM (next day)2:00 PM (next day)
10:00 PM 2:00 PM (next day)3:00 PM (next day)
11:00 PM 3:00 PM (next day)4:00 PM (next day)

How the gap changes in 2026 and 2027

Each row is a stretch of days with one constant difference, split at every clock change.

Time difference periods between PST and JST
Dates PST JST Difference
Thu, Jan 1, 2026 until Sun, Mar 8, 2026 PST JST JST 17 h ahead
Sun, Mar 8, 2026 until Sun, Nov 1, 2026 PDT JST JST 16 h ahead
Sun, Nov 1, 2026 until Sun, Mar 14, 2027 PST JST JST 17 h ahead
Sun, Mar 14, 2027 until Sun, Nov 7, 2027 PDT JST JST 16 h ahead
Sun, Nov 7, 2027 until Sat, Jan 1, 2028 PST JST JST 17 h ahead

Upcoming clock changes

  1. Pacific Time Sunday, November 1, 2026: at 2:00 AM clocks go back 1 hour to 1:00 AM
  2. Pacific Time Sunday, March 14, 2027: at 2:00 AM clocks go forward 1 hour to 3:00 AM
  3. Pacific Time Sunday, November 7, 2027: at 2:00 AM clocks go back 1 hour to 1:00 AM
  4. Pacific Time Sunday, March 12, 2028: at 2:00 AM clocks go forward 1 hour to 3:00 AM

About the two zones

Pacific Time (PST / PDT)

Pacific Time follows the clock in Los Angeles: Pacific Standard Time (PST, UTC−8) in winter and Pacific Daylight Time (PDT, UTC−7) during US daylight saving time.

IANA zone
America/Los_Angeles
Offset
UTC−8 standard, UTC−7 daylight saving
Used in
the US West Coast and British Columbia
Major cities
Los Angeles, San Francisco, Seattle, Vancouver, Las Vegas, Portland

PST is often used loosely for Pacific Time all year. In summer the correct abbreviation is PDT; the converter uses whichever applies on your date.

Japan Standard Time (JST)

Japan Standard Time is UTC+9 all year. Japan does not observe daylight saving time.

IANA zone
Asia/Tokyo
Offset
UTC+9 all year
Used in
Japan
Major cities
Tokyo, Osaka, Yokohama, Nagoya, Sapporo

PST and JST, answered

What is the time difference between PST and JST?

JST is 16 hours ahead of PDT for most of the year (238 days in 2026). The gap is 17 hours for about 18 weeks in 2026.

How do I work out the time in Japan from PST?

Japan uses Japan Standard Time. JST is 16 hours ahead of PDT for most of the year (238 days in 2026). The gap is 17 hours for about 18 weeks in 2026. Type any PST time into the PST to JST converter to see the Japan time for any date.

What is 9:00 AM PST in JST?

9:00 AM PDT is 1:00 AM (next day) JST for most of the year (238 days in 2026). 9:00 AM PST is 2:00 AM (next day) JST for about 18 weeks in 2026.

What is 12:00 PM PST in JST?

12:00 PM PDT is 4:00 AM (next day) JST for most of the year (238 days in 2026). 12:00 PM PST is 5:00 AM (next day) JST for about 18 weeks in 2026.

What is 10:00 AM PST in JST?

10:00 AM PDT is 2:00 AM (next day) JST for most of the year (238 days in 2026). 10:00 AM PST is 3:00 AM (next day) JST for about 18 weeks in 2026.

What is 5:00 PM PST in JST?

5:00 PM PDT is 9:00 AM (next day) JST for most of the year (238 days in 2026). 5:00 PM PST is 10:00 AM (next day) JST for about 18 weeks in 2026.

Is JST ahead of PST, and by how many hours?

Yes. JST is 16 hours ahead of PDT for most of the year (238 days in 2026). The gap is 17 hours for about 18 weeks in 2026.

What is a good meeting time for PST and JST?

Working days of 9 AM to 5 PM do not overlap. The least disruptive slot is around 4:30 PM PDT, which is 8:30 AM (next day) JST while PDT and JST apply.

Does daylight saving time affect PST to JST?

Pacific Time changes its clocks twice a year; Japan Standard Time does not. The next change is on Sunday, November 1, 2026 in Pacific Time.

Which PST does the PST to JST converter use?

PST is often used loosely for Pacific Time all year. In summer the correct abbreviation is PDT; the converter uses whichever applies on your date.

Related conversions

From Pacific Time

To Japan Standard Time