Seoul to Edmonton
-15hSeoul
KSTSOURCEEdmonton
MDTGreen rows indicate typical business hours (9 AM - 5 PM)
KST and MDT on the World Map
The map below highlights the KST (Korea Standard Time) and MDT (Mountain Standard 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).
MST – Mountain Standard Time
UTC-07:00Mountain Standard Time (MST) is the time zone for the Mountain region of North America, 7 hours behind UTC.
- •Arizona does not observe daylight saving time, staying on MST year-round.
- •The Navajo Nation in Arizona does observe DST, unlike the rest of the state.
- •Denver, the 'Mile High City', is the largest city fully in MST.
- •MST covers 6 US states entirely and parts of several others.
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.
About Edmonton
WikipediaEdmonton operates on Mountain Time (MST/MDT), same as Denver. As Alberta's capital and an energy hub, Edmonton time aligns with Western Canadian markets.
The city has the most extensive urban parkland in North America.
Seoul vs Edmonton: Offsets, DST and Best Call Times
Seoul runs on Korean Standard Time (KST) at UTC+09:00. Edmonton runs on Mountain Daylight Time (MDT) at UTC-06:00, also currently on daylight saving time. That puts Seoul 15 hours behind Edmonton — a difference of -15h at the current offsets.
In practice, when it is 9:00 AM in Seoul it is 6:00 PM in Edmonton on the previous day. Midnight in Seoul is 9:00 AM in Edmonton.Edmonton observes daylight saving time while Seoul does not, so the gap narrows or widens by an hour part of the year.
Seoul to Edmonton time conversion table
| Seoul (KST) | Edmonton (MDT) | Day |
|---|---|---|
| 12:00 AM | 9:00 AM | previous day |
| 6:00 AM | 3:00 PM | previous day |
| 7:00 AM | 4:00 PM | previous day |
| 8:00 AM | 5:00 PM | previous day |
| 9:00 AM | 6:00 PM | previous day |
| 12:00 PM | 9:00 PM | previous day |
| 3:00 PM | 12:00 AM | same day |
| 5:00 PM | 2:00 AM | same day |
| 6:00 PM | 3:00 AM | same day |
| 9:00 PM | 6:00 AM | same day |
Why people convert Seoul to Edmonton time
- Scheduling a call from Seoul to Edmonton: a 10:00 AM start in Seoul lands at 7:00 PM in Edmonton the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -15h gap: Seoul and Edmonton 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 Edmonton is 6:00 PM in Seoul.
- Keeping family and friends in sync: knowing that 8:00 PM in Seoul is 5:00 AM in Edmonton makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM KST" is unambiguous; "3 PM" across a -15h gap is not.
- With a -15h gap there is no shared 9-to-5 window, so alternate the early start: one week Seoul takes the early slot, the next week Edmonton does.
- Edmonton: Clocks fall back on Sun, Nov 1, 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 MST (Mountain Standard Time)
Mountain Standard Time (MST) covers the Rocky Mountain region of the United States and Canada. Arizona is notable for not observing daylight saving time, staying on MST year-round (except the Navajo Nation). The time zone includes major cities like Denver, Phoenix, Calgary, and Salt Lake City. During summer, most areas switch to Mountain Daylight Time (MDT, UTC-06:00).
Best time to call between Seoul and Edmonton
With a -15h offset there is no overlap inside a normal 9 AM – 5 PM day. Edmonton opens at 9:00 AM MDT, which is 6:00 PM in Seoul, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
Seoul and Edmonton have no shared working hours because of the -15h gap. Teams need to alternate early starts or rely on asynchronous handovers.
Seoul is 15 hours behind Edmonton (KST UTC+09:00 → MDT UTC-06:00). 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
Edmonton
☀ Currently in DST
Standard: UTC-07:00 · DST: UTC-06:00
Clocks fall back on Sun, Nov 1, 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 Edmonton?
Seoul (KST, UTC+09:00) is 15 hours behind Edmonton (MDT, UTC-06:00). The gap is currently -15h.
How do I convert Seoul time to Edmonton time?
Add -15h to Seoul local time. For example, 9:00 AM in Seoul is 6:00 PM in Edmonton (previous day).
What time is it in Edmonton right now?
Edmonton uses MDT at UTC-06:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -15h offset from Seoul.
What is the best time to call Edmonton from Seoul?
There is no shared working-hours window because of the -15h gap. The closest option is 1:00 PM in Seoul, which is 10:00 PM in Edmonton.
Which is behind, Seoul or Edmonton?
Seoul is 15 hours behind Edmonton. When it is 12:00 PM in Seoul it is 9:00 PM in Edmonton.
Do Seoul and Edmonton use different time zones?
Seoul (South Korea) uses KST at UTC+09:00, while Edmonton (Canada) uses MDT at UTC-06:00. The IANA identifiers are Asia/Seoul and America/Edmonton.
Does daylight saving time affect the Seoul–Edmonton difference?
Yes at the moment: Edmonton is on daylight saving time and Seoul is not, so the -15h 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 Edmonton?
Sometimes. The -15h gap is large enough that 8:00 PM or later in Seoul already falls on the in Edmonton.
What is the time difference between Seoul and Edmonton?
Edmonton is -15h 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 Edmonton in?
Edmonton operates on Mountain Time (MST/MDT), same as Denver. As Alberta's capital and an energy hub, Edmonton time aligns with Western Canadian markets.
What are the business hours in Seoul?
Standard business hours in Seoul are 9:00 AM - 6:00 PM KST.
What are the business hours in Edmonton?
Standard business hours in Edmonton are 8:00 AM - 5:00 PM MST.
What is the best time to schedule a call between Seoul and Edmonton?
The best overlap for a call is when both cities are in business hours. Seoul works 9:00 AM - 6:00 PM KST and Edmonton works 8:00 AM - 5:00 PM MST (-15h difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Seoul and Edmonton?
Seoul uses KRW (₩) while Edmonton uses CAD (C$). Check current exchange rates when planning travel or business between these cities.
How do Seoul and Edmonton compare in size?
Seoul has a population of approximately 9.7 million (metro: 25.5 million), while Edmonton has approximately 1 million (metro: 1.4 million).
What are the major landmarks in Seoul and Edmonton?
Seoul is known for Gyeongbokgung Palace, N Seoul Tower, Bukchon Hanok Village. Edmonton is famous for West Edmonton Mall, Fort Edmonton Park, Art Gallery of Alberta.
Do Seoul and Edmonton have stock exchanges?
Yes. Seoul has the KRX (Korea Exchange) and Edmonton has the N/A (Uses TSX). The -15h time difference affects trading hour overlaps between these exchanges.
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 MST timezone?
Major cities in the MST timezone include Denver, Phoenix, Salt Lake City, Calgary, Edmonton, Albuquerque, El Paso, Tucson.
What is the UTC offset for MST?
Mountain Standard Time (MST) is at UTC-07:00. During daylight saving time, it shifts to MDT.
What should I know about the MST timezone?
Arizona does not observe daylight saving time, staying on MST year-round. The Navajo Nation in Arizona does observe DST, unlike the rest of the state.
When is it midnight in Seoul, what time is it in Edmonton?
When it is 12:00 AM (midnight) in Seoul (KST), it is -15h later in Edmonton (MST).
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