COT to BJT Converter & Meeting Planner
Quick answer: 9:00 AM COT = 10:00 PM BJT (fixed -05:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Colombia Time (COT) and Beijing Time (BJT)? You need to account for the standard time difference. Beijing Time is normally 13 hours ahead of Colombia Time. Whether you are coordinating between teams in Bogotá and Medellín and Beijing and Shanghai, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM COT = 1:00 PM BJT. The full 24-hour COT to BJT table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM COT = 4:00 AM BJT (+1 day).
| COT Time | BJT Time |
|---|---|
| 12:00 AM (00:00) | 1:00 PM (13:00) |
| 1:00 AM (01:00) | 2:00 PM (14:00) |
| 2:00 AM (02:00) | 3:00 PM (15:00) |
| 3:00 AM (03:00) | 4:00 PM (16:00) |
| 4:00 AM (04:00) | 5:00 PM (17:00) |
| 5:00 AM (05:00) | 6:00 PM (18:00) |
| 6:00 AM (06:00) | 7:00 PM (19:00) |
| 7:00 AM (07:00) | 8:00 PM (20:00) |
| 8:00 AM (08:00) | 9:00 PM (21:00) |
| 9:00 AM (09:00) | 10:00 PM (22:00) |
| 10:00 AM (10:00) | 11:00 PM (23:00) |
| 11:00 AM (11:00) | 12:00 AM (00:00)+1 day |
| 12:00 PM (12:00) | 1:00 AM (01:00)+1 day |
| 1:00 PM (13:00) | 2:00 AM (02:00)+1 day |
| 2:00 PM (14:00) | 3:00 AM (03:00)+1 day |
| 3:00 PM (15:00) | 4:00 AM (04:00)+1 day |
| 4:00 PM (16:00) | 5:00 AM (05:00)+1 day |
| 5:00 PM (17:00) | 6:00 AM (06:00)+1 day |
| 6:00 PM (18:00) | 7:00 AM (07:00)+1 day |
| 7:00 PM (19:00) | 8:00 AM (08:00)+1 day |
| 8:00 PM (20:00) | 9:00 AM (09:00)+1 day |
| 9:00 PM (21:00) | 10:00 AM (10:00)+1 day |
| 10:00 PM (22:00) | 11:00 AM (11:00)+1 day |
| 11:00 PM (23:00) | 12:00 PM (12:00)+1 day |
Best time to call Beijing from Bogotá
For most work calls, compare the normal business day in Bogotá (COT) with the business day in Beijing (BJT). COT commonly covers South America, while BJT is mainly associated with East Asia.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
⚠️ There is no clean same-day business-hours overlap on 2026-07-05. A practical compromise is around 8:00 PM COT, which reaches 9:00 AM BJT near the start of their workday.
- DST Safety: Neither COT nor BJT uses Daylight Saving Time in our dataset, making business-hour relationships stable year-round.
- Colombia Stock Exchange (BVC): 09:30-16:00 local time in Bogotá.
- Shanghai Stock Exchange (SSE): 09:30-15:00 local time in Shanghai.
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Frequently Asked Questions
What is the time difference between COT and BJT?
During standard time, Beijing Time is 13 hours ahead of Colombia Time.
Does Colombia observe Daylight Saving Time?
Colombia does not observe Daylight Saving Time and has no current plans to do so. COT remains fixed at UTC-05:00 every day of the year, providing a consistent, unchanging reference point for international business and logistics.
How does Colombia Time (COT) align with the US?
COT (UTC-05:00) matches US Eastern Standard Time (EST) exactly during the Northern Hemisphere winter, creating zero offset between Bogotá and New York. During US Daylight Saving Time in summer, COT runs one hour behind Eastern Daylight Time (EDT, UTC-04:00), maintaining a gap narrow enough that a full shared workday remains easily achievable — one of the tightest nearshore alignments available from South America.
Does China observe Daylight Saving Time?
Mainland China abolished Daylight Saving Time in 1991 and has remained permanently fixed at UTC+8:00 ever since, with no seasonal clock adjustment at any point in the year. This means the offset between Beijing or Shanghai and any DST-observing country shifts by one hour twice annually when those countries change their clocks — but BJT itself never moves.
How many time zones are there in China?
Despite spanning a geographical width that would naturally encompass five separate time zones — from the eastern coast at roughly UTC+8 to the western reaches of Xinjiang near UTC+6 or even UTC+5 — China officially mandates a single unified time zone, Beijing Time (BJT) at UTC+8:00, across the entire country. This policy has been in place since 1949 and applies to all 34 provincial-level administrative regions without exception.