JST to PST Converter

Japan Standard Time → Pacific Standard Time · JST is 17 hours ahead of PST

JST
—
PST
—

JST and PST are the same time

JST to PST Conversion Table

JSTPST
12:00 AM12:00 AM
1:00 AM1:00 AM
2:00 AM2:00 AM
3:00 AM3:00 AM
4:00 AM4:00 AM
5:00 AM5:00 AM
6:00 AM6:00 AM
7:00 AM7:00 AM
8:00 AM8:00 AM
9:00 AM9:00 AM
10:00 AM10:00 AM
11:00 AM11:00 AM
12:00 PM12:00 PM
1:00 PM1:00 PM
2:00 PM2:00 PM
3:00 PM3:00 PM
4:00 PM4:00 PM
5:00 PM5:00 PM
6:00 PM6:00 PM
7:00 PM7:00 PM
8:00 PM8:00 PM
9:00 PM9:00 PM
10:00 PM10:00 PM
11:00 PM11:00 PM

Green rows = business hours overlap (9:00 AM – 6:00 PM JST)

Major JST Cities
  • Tokyo
  • Osaka
  • Kyoto
  • Yokohama
  • Sapporo
  • Fukuoka
Major PST Cities
  • Los Angeles, CA
  • San Francisco, CA
  • Seattle, WA
  • Portland, OR
  • Las Vegas, NV
  • San Diego, CA
Time Converter
Convert any two cities
Meeting Planner
Find the best overlap time
World Clock
Current time in 400+ cities

JST vs PST — Tokyo to Los Angeles

JST (Japan Standard Time) is UTC+9. Japan has no Daylight Saving Time — clocks never change, making JST one of the world's most stable time zones.

PST (Pacific Standard Time) is UTC-8. The US West Coast uses PDT (UTC-7) from March to November. This shift moves the Tokyo–LA gap from 17 hours (winter) to 16 hours (summer).

The Japan–West Coast corridor is critical for tech industry (Sony, Toyota, Nintendo coordinate with Silicon Valley), gaming, and automotive supply chains. The 16–17 hour gap means most collaboration happens asynchronously.

Frequently Asked Questions

How many hours ahead is JST compared to PST?

JST (Japan Standard Time, UTC+9) is 17 hours ahead of PST (Pacific Standard Time, UTC-8) in winter. During US Daylight Saving Time (PDT, UTC-7), the difference narrows to 16 hours. Japan does not observe DST, so the gap changes only when the US shifts clocks.

What is 9 AM JST in PST?

9:00 AM JST (Tokyo) is 4:00 PM PST the previous day in winter. In other words, Tuesday 9:00 AM Tokyo = Monday 4:00 PM Los Angeles. During PDT (US summer), 9:00 AM JST = 5:00 PM PDT the previous day.

What is the best time to schedule a meeting between Tokyo and Los Angeles?

The best overlap window between Tokyo (JST) and Los Angeles (PST/PDT) is difficult due to the 16–17 hour gap. Options: 8:00–9:00 AM PST = 1:00–2:00 AM JST next day (early for Tokyo), or 5:00–6:00 PM PST = 10:00–11:00 AM JST next day (end of day for LA). Many Japan–West Coast tech teams use asynchronous communication or schedule calls at 7:00–8:00 AM PST / 12:00–1:00 AM JST.

Does Japan observe Daylight Saving Time?

No. Japan does not observe Daylight Saving Time. JST is always UTC+9 year-round. This means the gap between Tokyo and Los Angeles changes only when the US changes its clocks — 17 hours in US winter (PST) and 16 hours in US summer (PDT).

What day is it in Tokyo when it is Monday in Los Angeles?

When it is Monday morning in Los Angeles, it is typically Tuesday in Tokyo due to the 16–17 hour difference. For example, Monday 8:00 AM PST = Tuesday 1:00 AM JST. This date line crossing is a common source of confusion for Japan–US scheduling.