KST to Kathmandu
-3h 15mKST
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 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).
Comparing Time Zones: KST and Kathmandu
KST runs on Korea Standard Time (KST) at UTC+09:00. Kathmandu runs on Nepal Time (NPT) at UTC+05:45. That puts KST 3 hours 15 minutes behind Kathmandu — a difference of -3h 15m at the current offsets.
In practice, when it is 9:00 AM in KST it is 5:45 AM in Kathmandu. Midnight in KST is 8:45 PM in Kathmandu. Neither zone observes daylight saving time, so the offset between them stays constant all year.
KST to Kathmandu time conversion table
| KST (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 KST to Kathmandu time
- Scheduling a call from KST to Kathmandu: a 10:00 AM start in KST lands at 6:45 AM in Kathmandu, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both KST 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.
- Coordinating a KST-based team with Kathmandu 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 -3h 15m gap is not.
- Block 12:15 PM–5:00 PM KST as the recurring meeting window if you work primarily from KST 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 KST and Kathmandu
Both KST 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
KST and Kathmandu overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
KST 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 KST and Kathmandu?
KST (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 KST time to Kathmandu time?
Add -3h 15m to KST local time. For example, 9:00 AM in KST 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 KST.
What is the best time to call Kathmandu from KST?
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, KST or Kathmandu?
KST is 3 hours 15 minutes behind Kathmandu. When it is 12:00 PM in KST it is 8:45 AM in Kathmandu.
Do KST and Kathmandu use different time zones?
KST 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 KST–Kathmandu difference?
Neither zone observes daylight saving time, so the -3h 15m offset between KST and Kathmandu is fixed all year.
Which other cities share KST's time zone?
KST also covers Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
Which countries use KST, KST's zone?
KST is used in South Korea, North Korea.
Is there a day difference between KST and Kathmandu?
Not normally. The -3h 15m gap only pushes the date over the previous day.
What is the time difference between KST and Kathmandu?
Kathmandu is -3h 15m from KST.
What timezone is KST in?
KST operates on its local timezone.
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 Kathmandu?
Standard business hours in Kathmandu are 10:00 AM - 5:00 PM NPT.
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 KST, what time is it in Kathmandu?
When it is 12:00 AM (midnight) in KST (KST), it is -3h 15m later in Kathmandu (NPT).
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