PST to Osaka
+17hPST
PSTSOURCEOsaka
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
PST and JST on the World Map
The map below highlights the PST (Pacific Standard Time) and JST (Japan Standard Time) timezone regions across the globe.
PST – Pacific Standard Time
UTC-08:00Pacific Standard Time (PST) is the time zone for the US and Canadian Pacific coast, 8 hours behind UTC.
- •Silicon Valley and the world's biggest tech companies operate on Pacific Time.
- •The Hollywood film industry runs on PST/PDT.
- •PST is 3 hours behind EST, creating a significant business hours gap.
- •Vancouver, Canada's third-largest city, uses PST.
JST – Japan Standard Time
UTC+09:00Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.
- •Japan does not observe daylight saving time.
- •Tokyo is the most populous metropolitan area in the world.
- •The Tokyo Stock Exchange operates from 9:00 AM to 3:00 PM JST.
- •JST is 14 hours ahead of EST and 9 hours ahead of GMT.
About Osaka
WikipediaOsaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.
Osaka Castle was originally built in 1583 and has been rebuilt several times.
Time Conversion Guide: PST to Osaka
PST runs on Pacific Standard Time (PST) at UTC-08:00. Osaka runs on Japan Standard Time (JST) at UTC+09:00. That puts PST 17 hours ahead of Osaka — a difference of +17h at the current offsets.
In practice, when it is 9:00 AM in PST it is 2:00 AM in Osaka on the next day. Midnight in PST is 5:00 PM in Osaka. Neither zone observes daylight saving time, so the offset between them stays constant all year.
PST to Osaka time conversion table
| PST (PST) | Osaka (JST) | Day |
|---|---|---|
| 12:00 AM | 5:00 PM | same day |
| 6:00 AM | 11:00 PM | same day |
| 7:00 AM | 12:00 AM | next day |
| 8:00 AM | 1:00 AM | next day |
| 9:00 AM | 2:00 AM | next day |
| 12:00 PM | 5:00 AM | next day |
| 3:00 PM | 8:00 AM | next day |
| 5:00 PM | 10:00 AM | next day |
| 6:00 PM | 11:00 AM | next day |
| 9:00 PM | 2:00 PM | next day |
Why people convert PST to Osaka time
- Scheduling a call from PST to Osaka: a 10:00 AM start in PST lands at 3:00 AM in Osaka the next day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +17h gap: PST and Osaka have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in Osaka is 2:00 AM in PST.
- Watching a live event or market open: PST viewers need 2:00 AM in Osaka to catch a 9:00 AM start there, and 7:00 AM if the event is anchored to PST.
- Always state the zone abbreviation, not just the hour. "3:00 PM PST" is unambiguous; "3 PM" across a +17h gap is not.
- With a +17h gap there is no shared 9-to-5 window, so alternate the early start: one week PST takes the early slot, the next week Osaka does.
About PST (Pacific Standard Time)
Pacific Standard Time (PST) covers the west coast of North America, including tech hubs like San Francisco and Seattle, and entertainment capital Los Angeles. The Pacific Time Zone is home to Silicon Valley and the world's largest technology companies. During summer, clocks advance to Pacific Daylight Time (PDT, UTC-07:00). PST is also observed in Baja California, Mexico.
About JST (Japan Standard Time)
Japan Standard Time (JST) is the standard time zone for all of Japan. Japan does not observe daylight saving time. JST is 9 hours ahead of UTC and 14 hours ahead of EST. The Tokyo Stock Exchange, the world's third largest by market capitalization, operates on JST. South Korea uses the same offset (KST) but it is a distinct time zone.
Best time to call between PST and Osaka
With a +17h offset there is no overlap inside a normal 9 AM – 5 PM day. Osaka opens at 9:00 AM JST, which is 2:00 AM in PST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
PST and Osaka have no shared working hours because of the +17h gap. Teams need to alternate early starts or rely on asynchronous handovers.
PST is 17 hours ahead of Osaka (PST UTC-08:00 → JST UTC+09:00). There is no shared 9-to-5 window, so plan around an early or late slot. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
PST
☀ Currently in DST
Standard: UTC-08:00 · DST: UTC-07:00
Clocks fall back on Sun, Nov 1, 2026
Osaka
Does not observe DST
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between PST and Osaka?
PST (PST, UTC-08:00) is 17 hours ahead of Osaka (JST, UTC+09:00). The gap is currently +17h.
How do I convert PST time to Osaka time?
Add +17h to PST local time. For example, 9:00 AM in PST is 2:00 AM in Osaka (next day).
What time is it in Osaka right now?
Osaka uses JST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +17h offset from PST.
What is the best time to call Osaka from PST?
There is no shared working-hours window because of the +17h gap. The closest option is 1:00 PM in PST, which is 6:00 AM in Osaka.
Which is ahead, PST or Osaka?
PST is 17 hours ahead of Osaka. When it is 12:00 PM in PST it is 5:00 AM in Osaka.
Do PST and Osaka use different time zones?
PST uses PST at UTC-08:00, while Osaka (Japan) uses JST at UTC+09:00. The IANA identifiers are America/Los_Angeles and Asia/Tokyo.
Does daylight saving time affect the PST–Osaka difference?
Neither zone observes daylight saving time, so the +17h offset between PST and Osaka is fixed all year.
Which other cities share PST's time zone?
PST also covers Los Angeles, San Francisco, Seattle, Vancouver, San Diego, Portland, Las Vegas, Sacramento and 2 more.
Which countries use PST, PST's zone?
PST is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Is there a day difference between PST and Osaka?
Sometimes. The +17h gap is large enough that 8:00 PM or later in PST already falls on the next day in Osaka.
What is the time difference between PST and Osaka?
Osaka is +17h from PST.
What timezone is PST in?
PST operates on its local timezone.
What timezone is Osaka in?
Osaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.
What are the business hours in Osaka?
Standard business hours in Osaka are 9:00 AM - 6:00 PM JST.
Which countries use PST (Pacific Standard Time)?
PST is used in United States (Pacific), Canada (British Columbia), Mexico (Baja California).
Does PST observe daylight saving time?
Yes, PST switches to PDT during summer months.
What are some interesting facts about PST?
Silicon Valley and the world's biggest tech companies operate on Pacific Time. The Hollywood film industry runs on PST/PDT.
Which cities are in the JST timezone?
Major cities in the JST timezone include Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka.
What is the UTC offset for JST?
Japan Standard Time (JST) is at UTC+09:00.
What should I know about the JST timezone?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
When is it midnight in PST, what time is it in Osaka?
When it is 12:00 AM (midnight) in PST (PST), it is +17h later in Osaka (JST).
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