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
JST to PST converter
Convert Japan Standard Time (JST) to Pacific Time (PST/PDT), with daylight saving applied for the exact date you pick.
From
Tue, Oct 27
To
Mon, Oct 26 Previous day
| Su | Mo | Tu | We | Th | Fr | Sa |
|---|
JST 9 to 5 PDT 9 to 5
- From zone
- Japan Standard Time
- Offset and clock
- UTC+9 No daylight saving time
- IANA name
- Asia/Tokyo
- To zone
- Pacific Daylight Time
- Offset and clock
- UTC−7 Daylight saving time
- IANA name
- America/Los_Angeles
PDT is 16 hours behind JST.
- Time difference
- PDT is 16 hours behind JST 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 8:30 AM JST, which is 4:30 PM (previous day) PDT while JST and PDT apply.
- Daylight saving
- Pacific Time changes its clocks twice a year; Japan Standard Time does not.
Where JST and PST 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.
- Japan Standard Time
- Pacific Time
- Same UTC offset right now, different zone rules
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.
| Tokyo (JST) | Los Angeles (PDT) | Working hours |
|---|---|---|
| 12:00 AM | 8:00 AM previous day | |
| 1:00 AM | 9:00 AM previous day | |
| 2:00 AM | 10:00 AM previous day | |
| 3:00 AM | 11:00 AM previous day | |
| 4:00 AM | 12:00 PM previous day | |
| 5:00 AM | 1:00 PM previous day | |
| 6:00 AM | 2:00 PM previous day | |
| 7:00 AM | 3:00 PM previous day | |
| 8:00 AM | 4:00 PM previous day | |
| 9:00 AM | 5:00 PM previous day | |
| 10:00 AM | 6:00 PM previous day | |
| 11:00 AM | 7:00 PM previous day | |
| 12:00 PM | 8:00 PM previous day | |
| 1:00 PM | 9:00 PM previous day | |
| 2:00 PM | 10:00 PM previous day | |
| 3:00 PM | 11:00 PM previous day | |
| 4:00 PM | 12:00 AM | |
| 5:00 PM | 1:00 AM | |
| 6:00 PM | 2:00 AM | |
| 7:00 PM | 3:00 AM | |
| 8:00 PM | 4:00 AM | |
| 9:00 PM | 5:00 AM | |
| 10:00 PM | 6:00 AM | |
| 11:00 PM | 7:00 AM |
JST to PST conversion table
Common JST times and their PST equivalents. The second column covers the part of the year when the clocks are on a different gap.
| Japan Standard Time | PDT 16 h behind, most of the year (238 days in 2026) | PST 17 h behind, about 18 weeks in 2026 |
|---|---|---|
| 12:00 AM | 8:00 AM (previous day) | 7:00 AM (previous day) |
| 6:00 AM | 2:00 PM (previous day) | 1:00 PM (previous day) |
| 8:00 AM | 4:00 PM (previous day) | 3:00 PM (previous day) |
| 9:00 AM | 5:00 PM (previous day) | 4:00 PM (previous day) |
| 10:00 AM | 6:00 PM (previous day) | 5:00 PM (previous day) |
| 12:00 PM | 8:00 PM (previous day) | 7:00 PM (previous day) |
| 2:00 PM | 10:00 PM (previous day) | 9:00 PM (previous day) |
| 3:00 PM | 11:00 PM (previous day) | 10:00 PM (previous day) |
| 5:00 PM | 1:00 AM | 12:00 AM |
| 6:00 PM | 2:00 AM | 1:00 AM |
| 8:00 PM | 4:00 AM | 3:00 AM |
| 10:00 PM | 6:00 AM | 5:00 AM |
How the gap changes in 2026 and 2027
Each row is a stretch of days with one constant difference, split at every clock change.
| Dates | JST | PST | Difference |
|---|---|---|---|
| Thu, Jan 1, 2026 until Sun, Mar 8, 2026 | JST | PST | PST 17 h behind |
| Sun, Mar 8, 2026 until Sun, Nov 1, 2026 | JST | PDT | PDT 16 h behind |
| Sun, Nov 1, 2026 until Sun, Mar 14, 2027 | JST | PST | PST 17 h behind |
| Sun, Mar 14, 2027 until Sun, Nov 7, 2027 | JST | PDT | PDT 16 h behind |
| Sun, Nov 7, 2027 until Sat, Jan 1, 2028 | JST | PST | PST 17 h behind |
Upcoming clock changes
- Pacific Time Sunday, November 1, 2026: at 2:00 AM clocks go back 1 hour to 1:00 AM
- Pacific Time Sunday, March 14, 2027: at 2:00 AM clocks go forward 1 hour to 3:00 AM
- Pacific Time Sunday, November 7, 2027: at 2:00 AM clocks go back 1 hour to 1:00 AM
- 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.
JST and PST, answered
What is the time difference between JST and PST?
PDT is 16 hours behind JST 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 JST and PST?
Working days of 9 AM to 5 PM do not overlap. The least disruptive slot is around 8:30 AM JST, which is 4:30 PM (previous day) PDT while JST and PDT apply.
Does daylight saving time affect JST to PST?
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 JST to PST 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.