Seoul to Portugal
-8hSeoul
KSTSOURCEPortugal
WESTGreen rows indicate typical business hours (9 AM - 5 PM)
KST and WEST on the World Map
The map below highlights the KST (Korea Standard Time) and WEST (Western European Time) timezone regions across the globe.
KST – Korea Standard Time
UTC+09:00Korea Standard Time (KST) is the time zone for South Korea, 9 hours ahead of UTC.
- •South Korea does not observe daylight saving time.
- •Seoul is home to Samsung, LG, and Hyundai headquarters.
- •KST is the same offset as JST (UTC+09:00).
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 Seoul
WikipediaSeoul operates on Korea Standard Time (KST), UTC+9, same as Japan. As a global tech and entertainment hub, Seoul coordinates with East Asian markets.
Seoul has the fastest average internet speed in the world.
Understanding the -8h Gap: Seoul vs Portugal
Seoul runs on Korean Standard Time (KST) at UTC+09:00. Portugal runs on Western European Summer Time (WEST) at UTC+01:00, also currently on daylight saving time. That puts Seoul 8 hours behind Portugal — a difference of -8h at the current offsets.
In practice, when it is 9:00 AM in Seoul it is 1:00 AM in Portugal. Midnight in Seoul is 4:00 PM in Portugal.Portugal observes daylight saving time while Seoul does not, so the gap narrows or widens by an hour part of the year.
Seoul to Portugal time conversion table
| Seoul (KST) | Portugal (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 Seoul to Portugal time
- Scheduling a call from Seoul to Portugal: a 10:00 AM start in Seoul lands at 2:00 AM in Portugal, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -8h gap: Seoul and Portugal 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 Portugal is 1:00 AM in Seoul.
- Coordinating a Seoul-based team with Portugal 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 KST" 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 Seoul takes the early slot, the next week Portugal does.
- Portugal: Clocks fall back on Sun, Oct 25, 2026. Any meeting series spanning that date will shift by an hour in local time.
About KST (Korea Standard Time)
Korea Standard Time (KST) is the time zone used in South Korea. It shares the same UTC offset as Japan Standard Time but is a distinct time zone. South Korea does not observe daylight saving time. Seoul, the capital, is a major global tech and business hub.
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 Seoul and Portugal
With a -8h offset there is no overlap inside a normal 9 AM – 5 PM day. Portugal opens at 9:00 AM WEST, which is 1:00 AM in Seoul, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Seoul and Portugal have no shared working hours because of the -8h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Seoul is 8 hours behind Portugal (KST 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
Seoul
Does not observe DST
Portugal
☀ 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 Seoul and Portugal?
Seoul (KST, UTC+09:00) is 8 hours behind Portugal (WEST, UTC+01:00). The gap is currently -8h.
How do I convert Seoul time to Portugal time?
Add -8h to Seoul local time. For example, 9:00 AM in Seoul is 1:00 AM in Portugal.
What time is it in Portugal right now?
Portugal 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 Seoul.
What is the best time to call Portugal from Seoul?
There is no shared working-hours window because of the -8h gap. The closest option is 1:00 PM in Seoul, which is 5:00 AM in Portugal.
Which is behind, Seoul or Portugal?
Seoul is 8 hours behind Portugal. When it is 12:00 PM in Seoul it is 4:00 AM in Portugal.
Do Seoul and Portugal use different time zones?
Seoul (South Korea) uses KST at UTC+09:00, while Portugal (Portugal) uses WEST at UTC+01:00. The IANA identifiers are Asia/Seoul and Europe/Lisbon.
Does daylight saving time affect the Seoul–Portugal difference?
Yes at the moment: Portugal is on daylight saving time and Seoul is not, so the -8h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share Seoul's time zone?
KST also covers Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
Which countries use KST, Seoul's zone?
KST is used in South Korea, North Korea.
Is there a day difference between Seoul and Portugal?
Not normally. The -8h gap only pushes the date over the previous day.
What is the time difference between Seoul and Portugal?
Portugal is -8h from Seoul.
What timezone is Seoul in?
Seoul operates on Korea Standard Time (KST), UTC+9, same as Japan. As a global tech and entertainment hub, Seoul coordinates with East Asian markets.
What timezone is Portugal in?
Portugal operates on its local timezone.
What are the business hours in Seoul?
Standard business hours in Seoul are 9:00 AM - 6:00 PM KST.
Which countries use KST (Korea Standard Time)?
KST is used in South Korea, North Korea.
Does KST observe daylight saving time?
No, KST does not observe daylight saving time and remains at UTC+09:00 year-round.
What are some interesting facts about KST?
South Korea does not observe daylight saving time. Seoul is home to Samsung, LG, and Hyundai headquarters.
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 Seoul, what time is it in Portugal?
When it is 12:00 AM (midnight) in Seoul (KST), it is -8h later in Portugal (WET).
Related Developer Tools
Explore more tools that work great with timezone conversions for international teams:
Related Timezone Conversions
More Seoul time conversions
- seoul to kst
- seoul to south korea
- seoul to dubai
- seoul to mumbai
- seoul to delhi
- seoul to bangalore
- seoul to kathmandu
- seoul to bangkok
- seoul to singapore
- seoul to hong kong
- seoul to shanghai
- seoul to beijing
- seoul to tokyo
- seoul to osaka
- seoul to new york
- seoul to london
- seoul to sydney
- seoul to los angeles
- seoul to paris
- seoul to berlin
- seoul to toronto
- new york to seoul
- london to seoul
- dubai to seoul
- tokyo to seoul
- singapore to seoul
- sydney to seoul
- los angeles to seoul
- paris to seoul
- delhi to seoul
- mumbai to seoul
- berlin to seoul
- hong kong to seoul
- toronto to seoul
- kathmandu to seoul
See every conversion from Seoul →·See every conversion from Portugal →