Osaka to Lisbon
-8hOsaka
JSTSOURCELisbon
WESTGreen rows indicate typical business hours (9 AM - 5 PM)
JST and WEST on the World Map
The map below highlights the JST (Japan Standard Time) and WEST (Western European Time) timezone regions across the globe.
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.
WET – Western European Time
UTC+00:00Western European Time (WET) is the time zone for Portugal, Morocco, and the Canary Islands, same as UTC+00:00.
- •Portugal is the only mainland European country in the WET time zone.
- •The Canary Islands are on WET despite being part of Spain (which uses CET).
- •WET is identical to GMT and UTC+00:00.
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.
About Lisbon
WikipediaLisbon operates on Western European Time (WET/WEST), same as London. As Portugal's capital and an emerging tech hub, Lisbon bridges European and Atlantic time zones.
Lisbon has 300 days of sunshine per year and is a major startup hub in Europe.
Understanding the -8h Gap: Osaka vs Lisbon
Osaka runs on Japan Standard Time (JST) at UTC+09:00. Lisbon runs on Western European Summer Time (WEST) at UTC+01:00, also currently on daylight saving time. That puts Osaka 8 hours behind Lisbon — a difference of -8h at the current offsets.
In practice, when it is 9:00 AM in Osaka it is 1:00 AM in Lisbon. Midnight in Osaka is 4:00 PM in Lisbon.Lisbon observes daylight saving time while Osaka does not, so the gap narrows or widens by an hour part of the year.
Osaka to Lisbon time conversion table
| Osaka (JST) | Lisbon (WEST) | Day |
|---|---|---|
| 12:00 AM | 4:00 PM | previous day |
| 6:00 AM | 10:00 PM | previous day |
| 7:00 AM | 11:00 PM | previous day |
| 8:00 AM | 12:00 AM | same day |
| 9:00 AM | 1:00 AM | same day |
| 12:00 PM | 4:00 AM | same day |
| 3:00 PM | 7:00 AM | same day |
| 5:00 PM | 9:00 AM | same day |
| 6:00 PM | 10:00 AM | same day |
| 9:00 PM | 1:00 PM | same day |
Why people convert Osaka to Lisbon time
- Scheduling a call from Osaka to Lisbon: a 10:00 AM start in Osaka lands at 2:00 AM in Lisbon, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -8h gap: Osaka and Lisbon 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 Lisbon is 1:00 AM in Osaka.
- Coordinating a Osaka-based team with Lisbon contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM JST" is unambiguous; "3 PM" across a -8h gap is not.
- With a -8h gap there is no shared 9-to-5 window, so alternate the early start: one week Osaka takes the early slot, the next week Lisbon does.
- Lisbon: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
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.
About WET (Western European Time)
Western European Time (WET) is used in Portugal, the Canary Islands (Spain), Morocco, and several other locations. It is equivalent to GMT/UTC. During summer, Portugal and the Canary Islands switch to WEST (Western European Summer Time, UTC+01:00).
Best time to call between Osaka and Lisbon
With a -8h offset there is no overlap inside a normal 9 AM – 5 PM day. Lisbon opens at 9:00 AM WEST, which is 1:00 AM in Osaka, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Osaka and Lisbon have no shared working hours because of the -8h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Osaka is 8 hours behind Lisbon (JST UTC+09:00 → WEST UTC+01:00). 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
Osaka
Does not observe DST
Lisbon
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 2026
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 Osaka and Lisbon?
Osaka (JST, UTC+09:00) is 8 hours behind Lisbon (WEST, UTC+01:00). The gap is currently -8h.
How do I convert Osaka time to Lisbon time?
Add -8h to Osaka local time. For example, 9:00 AM in Osaka is 1:00 AM in Lisbon.
What time is it in Lisbon right now?
Lisbon uses WEST at UTC+01:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -8h offset from Osaka.
What is the best time to call Lisbon from Osaka?
There is no shared working-hours window because of the -8h gap. The closest option is 1:00 PM in Osaka, which is 5:00 AM in Lisbon.
Which is behind, Osaka or Lisbon?
Osaka is 8 hours behind Lisbon. When it is 12:00 PM in Osaka it is 4:00 AM in Lisbon.
Do Osaka and Lisbon use different time zones?
Osaka (Japan) uses JST at UTC+09:00, while Lisbon (Portugal) uses WEST at UTC+01:00. The IANA identifiers are Asia/Tokyo and Europe/Lisbon.
Does daylight saving time affect the Osaka–Lisbon difference?
Yes at the moment: Lisbon is on daylight saving time and Osaka is not, so the -8h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Osaka's time zone?
JST also covers Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka and 1 more.
Which countries use JST, Osaka's zone?
JST is used in Japan.
Is there a day difference between Osaka and Lisbon?
Not normally. The -8h gap only pushes the date over the previous day.
What is the time difference between Osaka and Lisbon?
Lisbon is -8h from Osaka.
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 timezone is Lisbon in?
Lisbon operates on Western European Time (WET/WEST), same as London. As Portugal's capital and an emerging tech hub, Lisbon bridges European and Atlantic time zones.
What are the business hours in Osaka?
Standard business hours in Osaka are 9:00 AM - 6:00 PM JST.
What are the business hours in Lisbon?
Standard business hours in Lisbon are 9:00 AM - 6:00 PM WET.
What is the best time to schedule a call between Osaka and Lisbon?
The best overlap for a call is when both cities are in business hours. Osaka works 9:00 AM - 6:00 PM JST and Lisbon works 9:00 AM - 6:00 PM WET (-8h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Osaka and Lisbon?
Osaka uses JPY (¥) while Lisbon uses EUR (€). Check current exchange rates when planning travel or business between these cities.
How do Osaka and Lisbon compare in size?
Osaka has a population of approximately 2.8 million (metro: 19 million), while Lisbon has approximately 545,000 (metro: 2.9 million).
What are the major landmarks in Osaka and Lisbon?
Osaka is known for Osaka Castle, Dotonbori, Universal Studios Japan. Lisbon is famous for Belém Tower, Jerónimos Monastery, São Jorge Castle.
Do Osaka and Lisbon have stock exchanges?
Yes. Osaka has the OSE (Osaka Exchange - derivatives) and Lisbon has the Euronext Lisbon. The -8h time difference affects trading hour overlaps between these exchanges.
Which countries use JST (Japan Standard Time)?
JST is used in Japan.
Does JST observe daylight saving time?
No, JST does not observe daylight saving time and remains at UTC+09:00 year-round.
What are some interesting facts about JST?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
Which cities are in the WET timezone?
Major cities in the WET timezone include Lisbon, Porto, Casablanca, Las Palmas, Funchal, Rabat.
What is the UTC offset for WET?
Western European Time (WET) is at UTC+00:00. During daylight saving time, it shifts to WEST.
What should I know about the WET timezone?
Portugal is the only mainland European country in the WET time zone. The Canary Islands are on WET despite being part of Spain (which uses CET).
When is it midnight in Osaka, what time is it in Lisbon?
When it is 12:00 AM (midnight) in Osaka (JST), it is -8h later in Lisbon (WET).
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