Does it account for Daylight Saving Time?

Yes, our converter uses the IANA timezone database, which includes all current DST rules for every timezone in the world.

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks. All timezones are defined as offsets from UTC.

Can I compare multiple timezones at once?

Yes, you can add multiple cities or timezones and see the equivalent times side by side.

How many timezones are there in the world?

There are 38 distinct UTC offsets in use, ranging from UTC-12 to UTC+14. This includes half-hour (UTC+5:30 India, UTC+9:30 Australia) and 45-minute offsets (UTC+5:45 Nepal, UTC+8:45 Australia).

What is the International Date Line?

The International Date Line (IDL) runs roughly along the 180° meridian in the Pacific Ocean. When you cross it westward, you gain a day; crossing eastward, you lose a day.

Why do some timezones have 30 or 45 minute offsets?

Countries chose offsets that best matched their solar noon. India uses UTC+5:30 and Nepal uses UTC+5:45 because standard hourly offsets didn't align well with their geography.

Which country has the most timezones?

France has the most (12 timezones) due to overseas territories. Russia spans 11 timezones. The US has 6 (including Hawaii and Alaska).

BDST to Bogotá

-11h

BDST

BDSTSOURCE

UTC+06:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Bogotá

COT

Colombia · UTC-05:00

HH01

MM00

01:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

BDST

Bogotá

12:00 AM

1:00 PM-1

2:00 AM

3:00 PM-1

4:00 AM

5:00 PM-1

6:00 AM

7:00 PM-1

8:00 AM

9:00 PM-1

10:00 AM

11:00 PM-1

12:00 PM

1:00 AM

2:00 PM

3:00 AM

4:00 PM

5:00 AM

6:00 PM

7:00 AM

8:00 PM

9:00 AM

10:00 PM

11:00 AM

Green rows indicate typical business hours (9 AM - 5 PM)

BDST and COT on the World Map

The map below highlights the BDST (Bangladesh Standard Time) and COT (Colombia Time) timezone regions across the globe.

BDST Zone

→

COT Zone

Explore all world timezones interactively →

BDST – Bangladesh Standard Time

UTC+06:00

Bangladesh Standard Time (BDST, UTC+06:00) is the time zone for Bangladesh, 6 hours ahead of UTC.

Countries in BDST

Bangladesh

Major Cities in BDST

DhakaChittagongKhulnaRajshahiSylhet

Key Facts about BDST

•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).

Daylight Saving:No – UTC+06:00 year-round

Learn more about BDST on Wikipedia

COT – Colombia Time

UTC-05:00

Colombia Time (COT) is the standard time for Colombia, 5 hours behind UTC.

Countries in COT

Colombia

Major Cities in COT

BogotáMedellínCaliBarranquillaCartagena

Key Facts about COT

•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.

Daylight Saving:No – UTC-05:00 year-round

Learn more about COT on Wikipedia

BDST to Bogotá Time Difference – Complete Guide

BDST runs on Bangladesh Standard Time (BDST) at UTC+06:00. Bogotá runs on Colombia Standard Time (COT) at UTC-05:00. That puts BDST 11 hours behind Bogotá — a difference of -11h at the current offsets.

In practice, when it is 9:00 AM in BDST it is 10:00 PM in Bogotá on the previous day. Midnight in BDST is 1:00 PM in Bogotá. Neither zone observes daylight saving time, so the offset between them stays constant all year.

BDST to Bogotá time conversion table

BDST (BDST)	Bogotá (COT)	Day
12:00 AM	1:00 PM	previous day
6:00 AM	7:00 PM	previous day
7:00 AM	8:00 PM	previous day
8:00 AM	9:00 PM	previous day
9:00 AM	10:00 PM	previous day
12:00 PM	1:00 AM	same day
3:00 PM	4:00 AM	same day
5:00 PM	6:00 AM	same day
6:00 PM	7:00 AM	same day
9:00 PM	10:00 AM	same day

Why people convert BDST to Bogotá time

Scheduling a call from BDST to Bogotá: a 10:00 AM start in BDST lands at 11:00 PM in Bogotá the previous day, so you can confirm the slot without doing the arithmetic yourself.
Handling a -11h gap: BDST and Bogotá 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 Bogotá is 10:00 PM in BDST.
Keeping family and friends in sync: knowing that 8:00 PM in BDST is 9:00 AM in Bogotá makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM BDST" 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 BDST takes the early slot, the next week Bogotá does.

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.

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.

Best time to call between BDST and Bogotá

With a -11h offset there is no overlap inside a normal 9 AM – 5 PM day. Bogotá opens at 9:00 AM COT, which is 10:00 PM in BDST, so real-time calls need an early-morning or late-evening slot on one side.

Business hours overlap

BDST and Bogotá have no shared working hours because of the -11h gap. Teams need to alternate early starts or rely on asynchronous handovers.

BDST is 11 hours behind Bogotá (BDST UTC+06:00 → COT UTC-05:00). 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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between BDST and Bogotá?

BDST (BDST, UTC+06:00) is 11 hours behind Bogotá (COT, UTC-05:00). The gap is currently -11h.

How do I convert BDST time to Bogotá time?

Add -11h to BDST local time. For example, 9:00 AM in BDST is 10:00 PM in Bogotá (previous day).

What time is it in Bogotá right now?

Bogotá uses COT at UTC-05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -11h offset from BDST.

What is the best time to call Bogotá from BDST?

There is no shared working-hours window because of the -11h gap. The closest option is 1:00 PM in BDST, which is 2:00 AM in Bogotá.

Which is behind, BDST or Bogotá?

BDST is 11 hours behind Bogotá. When it is 12:00 PM in BDST it is 1:00 AM in Bogotá.

Do BDST and Bogotá use different time zones?

BDST uses BDST at UTC+06:00, while Bogotá (Colombia) uses COT at UTC-05:00. The IANA identifiers are Asia/Dhaka and America/Bogota.

Does daylight saving time affect the BDST–Bogotá difference?

Neither zone observes daylight saving time, so the -11h offset between BDST and Bogotá is fixed all year.

Which other cities share BDST's time zone?

BDST also covers Dhaka, Chittagong, Khulna, Rajshahi, Sylhet.

Which countries use BDST, BDST's zone?

BDST is used in Bangladesh.

Is there a day difference between BDST and Bogotá?

Not normally. The -11h gap only pushes the date over the previous day.

What is the time difference between BDST and Bogotá?

Bogotá is -11h from BDST.

What timezone is BDST in?

BDST operates on its local timezone.

What timezone is Bogotá in?

Bogotá operates on its local timezone.

Which countries use BDST (Bangladesh Standard Time)?

BDST is used in Bangladesh.

Does BDST observe daylight saving time?

No, BDST does not observe daylight saving time and remains at UTC+06:00 year-round.

What are some interesting facts about BDST?

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.