COT to China
+13hCOT
COTSOURCEChina
CSTGreen rows indicate typical business hours (9 AM - 5 PM)
COT and CST on the World Map
The map below highlights the COT (Colombia Time) and CST (China Standard Time) timezone regions across the globe.
COT – Colombia Time
UTC-05:00Colombia Time (COT) is the standard time for Colombia, 5 hours behind UTC.
- •Colombia does not observe daylight saving time.
- •COT is the same offset as EST (UTC-05:00).
- •Bogotá sits at 2,640m elevation, making it one of the highest capital cities.
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.
Comparing Time Zones: COT and China
COT runs on Colombia Time (COT) at UTC-05:00. China runs on China Standard Time (CST) at UTC+08:00. That puts COT 13 hours ahead of China — a difference of +13h at the current offsets.
In practice, when it is 9:00 AM in COT it is 10:00 PM in China. Midnight in COT is 1:00 PM in China. Neither zone observes daylight saving time, so the offset between them stays constant all year.
COT to China time conversion table
| COT (COT) | China (CST) | Day |
|---|---|---|
| 12:00 AM | 1:00 PM | same day |
| 6:00 AM | 7:00 PM | same day |
| 7:00 AM | 8:00 PM | same day |
| 8:00 AM | 9:00 PM | same day |
| 9:00 AM | 10:00 PM | same day |
| 12:00 PM | 1:00 AM | next day |
| 3:00 PM | 4:00 AM | next day |
| 5:00 PM | 6:00 AM | next day |
| 6:00 PM | 7:00 AM | next day |
| 9:00 PM | 10:00 AM | next day |
Why people convert COT to China time
- Scheduling a call from COT to China: a 10:00 AM start in COT lands at 11:00 PM in China, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +13h gap: COT and China have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in China is 10:00 PM in COT.
- Booking travel or deliveries: tracking China local time against COT keeps pickup windows and arrival estimates honest across the +13h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM COT" is unambiguous; "3 PM" across a +13h gap is not.
- With a +13h gap there is no shared 9-to-5 window, so alternate the early start: one week COT takes the early slot, the next week China does.
About COT (Colombia Time)
Colombia Time (COT) is used throughout Colombia. Colombia does not observe daylight saving time. COT shares the same offset as EST (UTC-05:00). Bogotá, the capital, is one of the largest cities in South America.
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.
Best time to call between COT and China
With a +13h offset there is no overlap inside a normal 9 AM – 5 PM day. China opens at 9:00 AM CST, which is 10:00 PM in COT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
COT and China have no shared working hours because of the +13h gap. Teams need to alternate early starts or rely on asynchronous handovers.
COT is 13 hours ahead of China (COT UTC-05:00 → CST UTC+08:00). There is no shared 9-to-5 window, so plan around an early or late slot. 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 COT and China?
COT (COT, UTC-05:00) is 13 hours ahead of China (CST, UTC+08:00). The gap is currently +13h.
How do I convert COT time to China time?
Add +13h to COT local time. For example, 9:00 AM in COT is 10:00 PM in China.
What time is it in China right now?
China uses CST at UTC+08:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +13h offset from COT.
What is the best time to call China from COT?
There is no shared working-hours window because of the +13h gap. The closest option is 1:00 PM in COT, which is 2:00 AM in China.
Which is ahead, COT or China?
COT is 13 hours ahead of China. When it is 12:00 PM in COT it is 1:00 AM in China.
Do COT and China use different time zones?
COT uses COT at UTC-05:00, while China (China) uses CST at UTC+08:00. The IANA identifiers are America/Bogota and Asia/Shanghai.
Does daylight saving time affect the COT–China difference?
Neither zone observes daylight saving time, so the +13h offset between COT and China is fixed all year.
Which other cities share COT's time zone?
COT also covers Bogotá, Medellín, Cali, Barranquilla, Cartagena.
Which countries use COT, COT's zone?
COT is used in Colombia.
Is there a day difference between COT and China?
Sometimes. The +13h gap is large enough that 8:00 PM or later in COT already falls on the next day in China.
What is the time difference between COT and China?
China is +13h from COT.
What timezone is COT in?
COT operates on its local timezone.
What timezone is China in?
China operates on its local timezone.
Which countries use COT (Colombia Time)?
COT is used in Colombia.
Does COT observe daylight saving time?
No, COT does not observe daylight saving time and remains at UTC-05:00 year-round.
What are some interesting facts about COT?
Colombia does not observe daylight saving time. COT is the same offset as EST (UTC-05:00).
Which cities are in the CST timezone?
Major cities in the CST timezone include Shanghai, Beijing, Shenzhen, Guangzhou, Chengdu, Hong Kong, Taipei, Wuhan.
What is the UTC offset for CST?
China Standard Time (CST) is at UTC+08:00.
What should I know about the CST timezone?
China uses a single time zone despite spanning 5 geographical zones. In Xinjiang (western China), sunset can be as late as midnight in summer.
When is it midnight in COT, what time is it in China?
When it is 12:00 AM (midnight) in COT (COT), it is +13h later in China (CST).
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