SGT to Seoul
+1hSGT
SGTSOURCESeoul
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 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.
SGT vs Seoul: Offsets, DST and Best Call Times
SGT runs on Singapore Standard Time (SGT) at UTC+08:00. Seoul runs on Korean Standard Time (KST) at UTC+09:00. That puts SGT 1 hour ahead of Seoul — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in SGT it is 10:00 AM in Seoul. Midnight in SGT is 1:00 AM in Seoul. Neither zone observes daylight saving time, so the offset between them stays constant all year.
SGT to Seoul time conversion table
| SGT (SGT) | Seoul (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 SGT to Seoul time
- Scheduling a call from SGT to Seoul: a 10:00 AM start in SGT lands at 11:00 AM in Seoul, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both SGT and Seoul 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.
- Booking travel or deliveries: tracking Seoul local time against SGT keeps pickup windows and arrival estimates honest across the +1h offset.
- 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 SGT and need Seoul 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 SGT and Seoul
Both SGT and Seoul 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
SGT and Seoul share 7 hours of working-hours overlap (9:00 AM–4:00 PM SGT), so scheduling a live meeting is straightforward.
SGT is 1 hour ahead of Seoul (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 SGT and Seoul?
SGT (SGT, UTC+08:00) is 1 hour ahead of Seoul (KST, UTC+09:00). The gap is currently +1h.
How do I convert SGT time to Seoul time?
Add +1h to SGT local time. For example, 9:00 AM in SGT is 10:00 AM in Seoul.
What time is it in Seoul right now?
Seoul 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 SGT.
What is the best time to call Seoul from SGT?
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, SGT or Seoul?
SGT is 1 hour ahead of Seoul. When it is 12:00 PM in SGT it is 1:00 PM in Seoul.
Do SGT and Seoul use different time zones?
SGT uses SGT at UTC+08:00, while Seoul (South Korea) uses KST at UTC+09:00. The IANA identifiers are Asia/Singapore and Asia/Seoul.
Does daylight saving time affect the SGT–Seoul difference?
Neither zone observes daylight saving time, so the +1h offset between SGT and Seoul is fixed all year.
Which other cities share SGT's time zone?
SGT also covers Singapore.
Which countries use SGT, SGT's zone?
SGT is used in Singapore.
Is there a day difference between SGT and Seoul?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between SGT and Seoul?
Seoul is +1h from SGT.
What timezone is SGT in?
SGT operates on its local timezone.
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 are the business hours in Seoul?
Standard business hours in Seoul are 9:00 AM - 6:00 PM KST.
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 SGT, what time is it in Seoul?
When it is 12:00 AM (midnight) in SGT (SGT), it is +1h later in Seoul (KST).
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