COT to Dhaka
+11hCOT
COTSOURCEDhaka
BDSTGreen rows indicate typical business hours (9 AM - 5 PM)
COT and BDST on the World Map
The map below highlights the COT (Colombia Time) and BDST (Bangladesh 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.
BDST – Bangladesh Standard Time
UTC+06:00Bangladesh Standard Time (BDST, UTC+06:00) is the time zone for Bangladesh, 6 hours ahead of UTC.
- •Bangladesh uses a single time zone, UTC+06:00, across the entire country.
- •Bangladesh does not observe daylight saving time, so the offset is fixed all year.
- •Dhaka is one of the most densely populated cities globally.
- •BDST is written here to distinguish it from British Summer Time (BST).
About Dhaka
WikipediaDhaka operates on Bangladesh Standard Time (BST), UTC+6. As the world's second-largest garment hub, Dhaka time coordinates global fashion supply chains.
Bangladesh is the world's second-largest garment exporter after China.
Everything You Need to Know About COT and Dhaka Time
COT runs on Colombia Time (COT) at UTC-05:00. Dhaka runs on Bangladesh Standard Time (BDST) at UTC+06:00. That puts COT 11 hours ahead of Dhaka — a difference of +11h at the current offsets.
In practice, when it is 9:00 AM in COT it is 8:00 PM in Dhaka. Midnight in COT is 11:00 AM in Dhaka. Neither zone observes daylight saving time, so the offset between them stays constant all year.
COT to Dhaka time conversion table
| COT (COT) | Dhaka (BDST) | Day |
|---|---|---|
| 12:00 AM | 11:00 AM | same day |
| 6:00 AM | 5:00 PM | same day |
| 7:00 AM | 6:00 PM | same day |
| 8:00 AM | 7:00 PM | same day |
| 9:00 AM | 8:00 PM | same day |
| 12:00 PM | 11:00 PM | same day |
| 3:00 PM | 2:00 AM | next day |
| 5:00 PM | 4:00 AM | next day |
| 6:00 PM | 5:00 AM | next day |
| 9:00 PM | 8:00 AM | next day |
Why people convert COT to Dhaka time
- Scheduling a call from COT to Dhaka: a 10:00 AM start in COT lands at 9:00 PM in Dhaka, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +11h gap: COT and Dhaka 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 Dhaka is 8:00 PM in COT.
- Coordinating a COT-based team with Dhaka contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM COT" is unambiguous; "3 PM" across a +11h gap is not.
- With a +11h gap there is no shared 9-to-5 window, so alternate the early start: one week COT takes the early slot, the next week Dhaka 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 BDST (Bangladesh Standard Time)
Bangladesh Standard Time (BDST) is the single time zone used across Bangladesh, fixed at UTC+06:00 all year. Bangladesh has not observed daylight saving time since a short-lived experiment in 2009, so the gap between Bangladesh and every other zone is constant. Dhaka, the capital, is one of the most densely populated cities in the world. Because the country sits close to the middle of the UTC+06:00 band, solar noon is near 12:00 for most of the year. BDST is listed separately from British Summer Time, which shares the BST abbreviation but is UTC+01:00.
Best time to call between COT and Dhaka
With a +11h offset there is no overlap inside a normal 9 AM – 5 PM day. Dhaka opens at 9:00 AM BDST, which is 8:00 PM in COT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
COT and Dhaka have no shared working hours because of the +11h gap. Teams need to alternate early starts or rely on asynchronous handovers.
COT is 11 hours ahead of Dhaka (COT UTC-05:00 → BDST UTC+06:00). 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 Dhaka?
COT (COT, UTC-05:00) is 11 hours ahead of Dhaka (BDST, UTC+06:00). The gap is currently +11h.
How do I convert COT time to Dhaka time?
Add +11h to COT local time. For example, 9:00 AM in COT is 8:00 PM in Dhaka.
What time is it in Dhaka right now?
Dhaka uses BDST at UTC+06:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +11h offset from COT.
What is the best time to call Dhaka from COT?
There is no shared working-hours window because of the +11h gap. The closest option is 1:00 PM in COT, which is 12:00 AM in Dhaka.
Which is ahead, COT or Dhaka?
COT is 11 hours ahead of Dhaka. When it is 12:00 PM in COT it is 11:00 PM in Dhaka.
Do COT and Dhaka use different time zones?
COT uses COT at UTC-05:00, while Dhaka (Bangladesh) uses BDST at UTC+06:00. The IANA identifiers are America/Bogota and Asia/Dhaka.
Does daylight saving time affect the COT–Dhaka difference?
Neither zone observes daylight saving time, so the +11h offset between COT and Dhaka 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 Dhaka?
Not normally. The +11h gap only pushes the date over for late-evening times.
What is the time difference between COT and Dhaka?
Dhaka is +11h from COT.
What timezone is COT in?
COT operates on its local timezone.
What timezone is Dhaka in?
Dhaka operates on Bangladesh Standard Time (BST), UTC+6. As the world's second-largest garment hub, Dhaka time coordinates global fashion supply chains.
What are the business hours in Dhaka?
Standard business hours in Dhaka are 9:00 AM - 5:00 PM BST.
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 BDST timezone?
Major cities in the BDST timezone include Dhaka, Chittagong, Khulna, Rajshahi, Sylhet.
What is the UTC offset for BDST?
Bangladesh Standard Time (BDST) is at UTC+06:00.
What should I know about the BDST timezone?
Bangladesh uses a single time zone, UTC+06:00, across the entire country. Bangladesh does not observe daylight saving time, so the offset is fixed all year.
When is it midnight in COT, what time is it in Dhaka?
When it is 12:00 AM (midnight) in COT (COT), it is +11h later in Dhaka (BDST).
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