Seoul to Kathmandu
-3h 15mSeoul
KSTSOURCEKathmandu
NPTGreen rows indicate typical business hours (9 AM - 5 PM)
KST and NPT on the World Map
The map below highlights the KST (Korea Standard Time) and NPT (Nepal 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).
NPT – Nepal Time
UTC+05:45Nepal Time (NPT, UTC+05:45) is the time zone for Nepal — one of the few offsets in the world set on a 45-minute increment.
- •Nepal Time is UTC+05:45 — a 45-minute offset, not a whole or half hour.
- •The 45-minute offset was adopted in 1986 to match Kathmandu's solar time.
- •Nepal does not observe daylight saving time.
- •Nepal is 15 minutes ahead of India, despite sharing a long open border.
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 Kathmandu
WikipediaKathmandu operates on Nepal Time (NPT), one of the world's unique UTC+5:45 timezones. This 15-minute offset from India makes Nepal time distinctive for global coordination.
Nepal Time (NPT) is one of only three timezones offset by 45 minutes (UTC+5:45).
Everything You Need to Know About Seoul and Kathmandu Time
Seoul runs on Korean Standard Time (KST) at UTC+09:00. Kathmandu runs on Nepal Time (NPT) at UTC+05:45. That puts Seoul 3 hours 15 minutes behind Kathmandu — a difference of -3h 15m at the current offsets.
In practice, when it is 9:00 AM in Seoul it is 5:45 AM in Kathmandu. Midnight in Seoul is 8:45 PM in Kathmandu. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Seoul to Kathmandu time conversion table
| Seoul (KST) | Kathmandu (NPT) | Day |
|---|---|---|
| 12:00 AM | 8:45 PM | previous day |
| 6:00 AM | 2:45 AM | same day |
| 7:00 AM | 3:45 AM | same day |
| 8:00 AM | 4:45 AM | same day |
| 9:00 AM | 5:45 AM | same day |
| 12:00 PM | 8:45 AM | same day |
| 3:00 PM | 11:45 AM | same day |
| 5:00 PM | 1:45 PM | same day |
| 6:00 PM | 2:45 PM | same day |
| 9:00 PM | 5:45 PM | same day |
Why people convert Seoul to Kathmandu time
- Scheduling a call from Seoul to Kathmandu: a 10:00 AM start in Seoul lands at 6:45 AM in Kathmandu, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Seoul and Kathmandu are inside the 9-to-5 working day between 12:15 PM and 5:00 PM KST time (9:00 AM–1:45 PM NPT). That is roughly 4 hours 45 minutes of usable overlap.
- Watching a live event or market open: Seoul viewers need 5:45 AM in Kathmandu to catch a 9:00 AM start there, and 3:15 AM if the event is anchored to Seoul.
- Always state the zone abbreviation, not just the hour. "3:00 PM KST" is unambiguous; "3 PM" across a -3h 15m gap is not.
- Block 12:15 PM–5:00 PM KST as the recurring meeting window if you work primarily from Seoul and need Kathmandu colleagues present.
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 NPT (Nepal Time)
Nepal Time (NPT) runs at UTC+05:45, one of only a handful of time zones worldwide that are not a whole or half hour from UTC. Nepal set its offset to 5 hours 45 minutes ahead of UTC in 1986 to mark the country's position between the 75°E and 90°E meridians; Kathmandu's solar time sits just over 5 hours 41 minutes ahead of Greenwich, so the 45-minute offset tracks the sun more closely than either 5:30 or 6:00 would. Nepal does not observe daylight saving time, so NPT is fixed all year. The offset makes Nepal 15 minutes ahead of India Standard Time (UTC+05:30) and 2 hours 15 minutes ahead of Dubai (UTC+04:00).
Best time to call between Seoul and Kathmandu
Both Seoul and Kathmandu sit inside the 9 AM – 5 PM working day between 12:15 PM–5:00 PM KST, which is 9:00 AM–1:45 PM NPT. That gives roughly 4 hours and 45 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
Seoul and Kathmandu overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
Seoul is 3 hours 15 minutes behind Kathmandu (KST UTC+09:00 → NPT UTC+05:45). The shared working window is 12:15 PM–5:00 PM KST. Remember to re-check around daylight-saving transitions.
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 Kathmandu?
Seoul (KST, UTC+09:00) is 3 hours 15 minutes behind Kathmandu (NPT, UTC+05:45). The gap is currently -3h 15m.
How do I convert Seoul time to Kathmandu time?
Add -3h 15m to Seoul local time. For example, 9:00 AM in Seoul is 5:45 AM in Kathmandu.
What time is it in Kathmandu right now?
Kathmandu uses NPT at UTC+05:45. Use the live converter at the top of this page — it updates in real time and already accounts for the -3h 15m offset from Seoul.
What is the best time to call Kathmandu from Seoul?
Call between 12:15 PM and 5:00 PM KST — that maps to 9:00 AM–1:45 PM NPT and keeps both parties inside the working day.
Which is behind, Seoul or Kathmandu?
Seoul is 3 hours 15 minutes behind Kathmandu. When it is 12:00 PM in Seoul it is 8:45 AM in Kathmandu.
Do Seoul and Kathmandu use different time zones?
Seoul (South Korea) uses KST at UTC+09:00, while Kathmandu (Nepal) uses NPT at UTC+05:45. The IANA identifiers are Asia/Seoul and Asia/Kathmandu.
Does daylight saving time affect the Seoul–Kathmandu difference?
Neither zone observes daylight saving time, so the -3h 15m offset between Seoul and Kathmandu is fixed all year.
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 Kathmandu?
Not normally. The -3h 15m gap only pushes the date over the previous day.
What is the time difference between Seoul and Kathmandu?
Kathmandu is -3h 15m 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 Kathmandu in?
Kathmandu operates on Nepal Time (NPT), one of the world's unique UTC+5:45 timezones. This 15-minute offset from India makes Nepal time distinctive for global coordination.
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 Kathmandu?
Standard business hours in Kathmandu are 10:00 AM - 5:00 PM NPT.
What is the best time to schedule a call between Seoul and Kathmandu?
The best overlap for a call is when both cities are in business hours. Seoul works 9:00 AM - 6:00 PM KST and Kathmandu works 10:00 AM - 5:00 PM NPT (-3h 15m difference). Try scheduling during the overlapping window for maximum convenience.
What currencies are used in Seoul and Kathmandu?
Seoul uses KRW (₩) while Kathmandu uses NPR (रू). Check current exchange rates when planning travel or business between these cities.
How do Seoul and Kathmandu compare in size?
Seoul has a population of approximately 9.7 million (metro: 25.5 million), while Kathmandu has approximately 1.4 million (metro: 3.0 million).
What are the major landmarks in Seoul and Kathmandu?
Seoul is known for Gyeongbokgung Palace, N Seoul Tower, Bukchon Hanok Village. Kathmandu is famous for Boudhanath Stupa, Swayambhunath, Durbar Square.
Do Seoul and Kathmandu have stock exchanges?
Yes. Seoul has the KRX (Korea Exchange) and Kathmandu has the NEPSE (Nepal Stock Exchange). The -3h 15m 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 NPT timezone?
Major cities in the NPT timezone include Kathmandu, Pokhara, Lalitpur, Bharatpur, Biratnagar.
What is the UTC offset for NPT?
Nepal Time (NPT) is at UTC+05:45.
What should I know about the NPT timezone?
Nepal Time is UTC+05:45 — a 45-minute offset, not a whole or half hour. The 45-minute offset was adopted in 1986 to match Kathmandu's solar time.
When is it midnight in Seoul, what time is it in Kathmandu?
When it is 12:00 AM (midnight) in Seoul (KST), it is -3h 15m later in Kathmandu (NPT).
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