Singapore to KST
+1hSingapore
SGTSOURCEKST
KSTGreen rows indicate typical business hours (9 AM - 5 PM)
SGT and KST on the World Map
The map below highlights the SGT (Singapore Standard Time) and KST (Korea Standard Time) timezone regions across the globe.
SGT – Singapore Standard Time
UTC+08:00Singapore Standard Time (SGT) is the time zone for Singapore, 8 hours ahead of UTC.
- •Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00).
- •Singapore does not observe daylight saving time.
- •The Singapore Exchange (SGX) operates on SGT.
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).
About Singapore
WikipediaSingapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
The city-state has the world's highest percentage of millionaires, with 1 in 6 households.
Singapore vs KST: Offsets, DST and Best Call Times
Singapore runs on Singapore Standard Time (SGT) at UTC+08:00. KST runs on Korea Standard Time (KST) at UTC+09:00. That puts Singapore 1 hour ahead of KST — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in Singapore it is 10:00 AM in KST. Midnight in Singapore is 1:00 AM in KST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Singapore to KST time conversion table
| Singapore (SGT) | KST (KST) | Day |
|---|---|---|
| 12:00 AM | 1:00 AM | same day |
| 6:00 AM | 7:00 AM | same day |
| 7:00 AM | 8:00 AM | same day |
| 8:00 AM | 9:00 AM | same day |
| 9:00 AM | 10:00 AM | same day |
| 12:00 PM | 1:00 PM | same day |
| 3:00 PM | 4:00 PM | same day |
| 5:00 PM | 6:00 PM | same day |
| 6:00 PM | 7:00 PM | same day |
| 9:00 PM | 10:00 PM | same day |
Why people convert Singapore to KST time
- Scheduling a call from Singapore to KST: a 10:00 AM start in Singapore lands at 11:00 AM in KST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Singapore and KST are inside the 9-to-5 working day between 9:00 AM and 4:00 PM SGT time (10:00 AM–5:00 PM KST). That is roughly 7 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Singapore is 9:00 PM in KST makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM SGT" is unambiguous; "3 PM" across a +1h gap is not.
- Block 9:00 AM–4:00 PM SGT as the recurring meeting window if you work primarily from Singapore and need KST colleagues present.
About SGT (Singapore Standard Time)
Singapore Standard Time (SGT) is used in Singapore year-round. Singapore does not observe daylight saving time. Despite being geographically close to the UTC+07:00 zone, Singapore uses UTC+08:00 to align with major trading partners like China, Hong Kong, and Malaysia. Singapore is a major global financial hub.
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.
Best time to call between Singapore and KST
Both Singapore and KST sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM SGT, which is 10:00 AM–5:00 PM KST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Singapore and KST share 7 hours of working-hours overlap (9:00 AM–4:00 PM SGT), so scheduling a live meeting is straightforward.
Singapore is 1 hour ahead of KST (SGT UTC+08:00 → KST UTC+09:00). The shared working window is 9:00 AM–4:00 PM SGT. 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 Singapore and KST?
Singapore (SGT, UTC+08:00) is 1 hour ahead of KST (KST, UTC+09:00). The gap is currently +1h.
How do I convert Singapore time to KST time?
Add +1h to Singapore local time. For example, 9:00 AM in Singapore is 10:00 AM in KST.
What time is it in KST right now?
KST uses KST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from Singapore.
What is the best time to call KST from Singapore?
Call between 9:00 AM and 4:00 PM SGT — that maps to 10:00 AM–5:00 PM KST and keeps both parties inside the working day.
Which is ahead, Singapore or KST?
Singapore is 1 hour ahead of KST. When it is 12:00 PM in Singapore it is 1:00 PM in KST.
Do Singapore and KST use different time zones?
Singapore (Singapore) uses SGT at UTC+08:00, while KST uses KST at UTC+09:00. The IANA identifiers are Asia/Singapore and Asia/Seoul.
Does daylight saving time affect the Singapore–KST difference?
Neither zone observes daylight saving time, so the +1h offset between Singapore and KST is fixed all year.
Which other cities share Singapore's time zone?
SGT also covers Singapore.
Which countries use SGT, Singapore's zone?
SGT is used in Singapore.
Is there a day difference between Singapore and KST?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between Singapore and KST?
KST is +1h from Singapore.
What timezone is Singapore in?
Singapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
What timezone is KST in?
KST operates on its local timezone.
What are the business hours in Singapore?
Standard business hours in Singapore are 9:00 AM - 6:00 PM SGT.
Which countries use SGT (Singapore Standard Time)?
SGT is used in Singapore.
Does SGT observe daylight saving time?
No, SGT does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about SGT?
Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00). Singapore does not observe daylight saving time.
Which cities are in the KST timezone?
Major cities in the KST timezone include Seoul, Busan, Incheon, Daegu, Daejeon, Pyongyang.
What is the UTC offset for KST?
Korea Standard Time (KST) is at UTC+09:00.
What should I know about the KST timezone?
South Korea does not observe daylight saving time. Seoul is home to Samsung, LG, and Hyundai headquarters.
When is it midnight in Singapore, what time is it in KST?
When it is 12:00 AM (midnight) in Singapore (SGT), it is +1h later in KST (KST).
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