Portugal to Osaka
+8hPortugal
WESTSOURCEOsaka
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
WEST and JST on the World Map
The map below highlights the WEST (Western European Time) and JST (Japan Standard Time) timezone regions across the globe.
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.
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.
Everything You Need to Know About Portugal and Osaka Time
Portugal runs on Western European Summer Time (WEST) at UTC+01:00, currently observing daylight saving time. Osaka runs on Japan Standard Time (JST) at UTC+09:00. That puts Portugal 8 hours ahead of Osaka — a difference of +8h at the current offsets.
In practice, when it is 9:00 AM in Portugal it is 5:00 PM in Osaka. Midnight in Portugal is 8:00 AM in Osaka.Portugal observes daylight saving time while Osaka does not, so the gap narrows or widens by an hour part of the year.
Portugal to Osaka time conversion table
| Portugal (WEST) | Osaka (JST) | Day |
|---|---|---|
| 12:00 AM | 8:00 AM | same day |
| 6:00 AM | 2:00 PM | same day |
| 7:00 AM | 3:00 PM | same day |
| 8:00 AM | 4:00 PM | same day |
| 9:00 AM | 5:00 PM | same day |
| 12:00 PM | 8:00 PM | same day |
| 3:00 PM | 11:00 PM | same day |
| 5:00 PM | 1:00 AM | next day |
| 6:00 PM | 2:00 AM | next day |
| 9:00 PM | 5:00 AM | next day |
Why people convert Portugal to Osaka time
- Scheduling a call from Portugal to Osaka: a 10:00 AM start in Portugal lands at 6:00 PM in Osaka, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +8h gap: Portugal 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 5:00 PM in Portugal.
- Coordinating a Portugal-based team with Osaka 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 WEST" 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 Portugal takes the early slot, the next week Osaka does.
- Portugal: Clocks fall back on Sun, Oct 25, 2026. Re-check this page after that date because the offset changes and so does the +8h gap.
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).
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 Portugal and Osaka
With a +8h offset there is no overlap inside a normal 9 AM – 5 PM day. Osaka opens at 9:00 AM JST, which is 5:00 PM in Portugal, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Portugal and Osaka have no shared working hours because of the +8h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Portugal is 8 hours ahead of Osaka (WEST UTC+01:00 → 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
Portugal
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 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 Portugal and Osaka?
Portugal (WEST, UTC+01:00) is 8 hours ahead of Osaka (JST, UTC+09:00). The gap is currently +8h.
How do I convert Portugal time to Osaka time?
Add +8h to Portugal local time. For example, 9:00 AM in Portugal is 5:00 PM in Osaka.
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 +8h offset from Portugal.
What is the best time to call Osaka from Portugal?
There is no shared working-hours window because of the +8h gap. The closest option is 1:00 PM in Portugal, which is 9:00 PM in Osaka.
Which is ahead, Portugal or Osaka?
Portugal is 8 hours ahead of Osaka. When it is 12:00 PM in Portugal it is 8:00 PM in Osaka.
Do Portugal and Osaka use different time zones?
Portugal (Portugal) uses WEST at UTC+01:00, while Osaka (Japan) uses JST at UTC+09:00. The IANA identifiers are Europe/Lisbon and Asia/Tokyo.
Does daylight saving time affect the Portugal–Osaka difference?
Yes at the moment: Portugal 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 Portugal's time zone?
WEST also covers Lisbon, Porto, Casablanca, Las Palmas, Funchal, Rabat.
Which countries use WEST, Portugal's zone?
WEST is used in Portugal, Spain (Canary Islands), Morocco, Western Sahara.
Is there a day difference between Portugal and Osaka?
Not normally. The +8h gap only pushes the date over for late-evening times.
What is the time difference between Portugal and Osaka?
Osaka is +8h from Portugal.
What timezone is Portugal in?
Portugal 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 WET (Western European Time)?
WET is used in Portugal, Spain (Canary Islands), Morocco, Western Sahara.
Does WET observe daylight saving time?
Yes, WET switches to WEST during summer months.
What are some interesting facts about WET?
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).
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 Portugal, what time is it in Osaka?
When it is 12:00 AM (midnight) in Portugal (WET), it is +8h later in Osaka (JST).
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