Beijing to KST
+1hBeijing
CSTSOURCEKST
KSTGreen rows indicate typical business hours (9 AM - 5 PM)
CST and KST on the World Map
The map below highlights the CST (China Standard Time) and KST (Korea Standard Time) timezone regions across the globe.
CST – China Standard Time
UTC+08:00China Standard Time (CST) covers all of mainland China, 8 hours ahead of UTC.
- •China uses a single time zone despite spanning 5 geographical zones.
- •In Xinjiang (western China), sunset can be as late as midnight in summer.
- •China abolished daylight saving time in 1991.
- •The Shanghai Stock Exchange operates on CST/Beijing Time.
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).
Understanding the +1h Gap: Beijing vs KST
Beijing runs on China Standard Time (CST) at UTC+08:00. KST runs on Korea Standard Time (KST) at UTC+09:00. That puts Beijing 1 hour ahead of KST — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in Beijing it is 10:00 AM in KST. Midnight in Beijing is 1:00 AM in KST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Beijing to KST time conversion table
| Beijing (CST) | 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 Beijing to KST time
- Scheduling a call from Beijing to KST: a 10:00 AM start in Beijing lands at 11:00 AM in KST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Beijing and KST are inside the 9-to-5 working day between 9:00 AM and 4:00 PM CST 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 Beijing 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 CST" is unambiguous; "3 PM" across a +1h gap is not.
- Block 9:00 AM–4:00 PM CST as the recurring meeting window if you work primarily from Beijing and need KST colleagues present.
About CST (China Standard Time)
China Standard Time (CST, also known as Beijing Time) is used across all of mainland China despite the country spanning five geographical time zones. This single-timezone policy was adopted in 1949. China does not observe daylight saving time. CST is shared with Hong Kong (HKT), Macau, Taiwan, Singapore, Malaysia, and the Philippines, making UTC+08:00 one of the most used offsets in the world.
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 Beijing and KST
Both Beijing and KST sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM CST, 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
Beijing and KST share 7 hours of working-hours overlap (9:00 AM–4:00 PM CST), so scheduling a live meeting is straightforward.
Beijing is 1 hour ahead of KST (CST UTC+08:00 → KST UTC+09:00). The shared working window is 9:00 AM–4:00 PM CST. 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 Beijing and KST?
Beijing (CST, UTC+08:00) is 1 hour ahead of KST (KST, UTC+09:00). The gap is currently +1h.
How do I convert Beijing time to KST time?
Add +1h to Beijing local time. For example, 9:00 AM in Beijing 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 Beijing.
What is the best time to call KST from Beijing?
Call between 9:00 AM and 4:00 PM CST — that maps to 10:00 AM–5:00 PM KST and keeps both parties inside the working day.
Which is ahead, Beijing or KST?
Beijing is 1 hour ahead of KST. When it is 12:00 PM in Beijing it is 1:00 PM in KST.
Do Beijing and KST use different time zones?
Beijing (China) uses CST at UTC+08:00, while KST uses KST at UTC+09:00. The IANA identifiers are Asia/Shanghai and Asia/Seoul.
Does daylight saving time affect the Beijing–KST difference?
Neither zone observes daylight saving time, so the +1h offset between Beijing and KST is fixed all year.
Which other cities share Beijing's time zone?
CST also covers Shanghai, Beijing, Shenzhen, Guangzhou, Chengdu, Hong Kong, Taipei, Wuhan and 2 more.
Which countries use CST, Beijing's zone?
CST is used in China, Hong Kong, Macau, Taiwan.
Is there a day difference between Beijing and KST?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between Beijing and KST?
KST is +1h from Beijing.
What timezone is Beijing in?
Beijing operates on its local timezone.
What timezone is KST in?
KST operates on its local timezone.
Which countries use CST (China Standard Time)?
CST is used in China, Hong Kong, Macau, Taiwan.
Does CST observe daylight saving time?
No, CST does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about CST?
China uses a single time zone despite spanning 5 geographical zones. In Xinjiang (western China), sunset can be as late as midnight in summer.
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 Beijing, what time is it in KST?
When it is 12:00 AM (midnight) in Beijing (CST), it is +1h later in KST (KST).
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