BDST to Chicago
-11hBDST
BDSTSOURCEChicago
CDTGreen rows indicate typical business hours (9 AM - 5 PM)
BDST and CDT on the World Map
The map below highlights the BDST (Bangladesh Standard Time) and CDT (Central Standard Time) timezone regions across the globe.
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).
CST – Central Standard Time
UTC-06:00Central Standard Time (CST) is the time zone for the central United States, Canada, and Mexico, 6 hours behind UTC.
- •CST covers 20 US states fully or partially.
- •Chicago and Houston are the two largest cities in the Central Time Zone.
- •Mexico City, one of the world's most populous cities, operates on CST.
- •CST is 1 hour behind EST and 2 hours ahead of PST.
About Chicago
WikipediaChicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.
The Chicago Board of Trade is the world's oldest futures and options exchange.
Comparing Time Zones: BDST and Chicago
BDST runs on Bangladesh Standard Time (BDST) at UTC+06:00. Chicago runs on Central Daylight Time (CDT) at UTC-05:00, also currently on daylight saving time. That puts BDST 11 hours behind Chicago — a difference of -11h at the current offsets.
In practice, when it is 9:00 AM in BDST it is 10:00 PM in Chicago on the previous day. Midnight in BDST is 1:00 PM in Chicago.Chicago observes daylight saving time while BDST does not, so the gap narrows or widens by an hour part of the year.
BDST to Chicago time conversion table
| BDST (BDST) | Chicago (CDT) | 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 Chicago time
- Scheduling a call from BDST to Chicago: a 10:00 AM start in BDST lands at 11:00 PM in Chicago the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -11h gap: BDST and Chicago 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 Chicago is 10:00 PM in BDST.
- Booking travel or deliveries: tracking Chicago local time against BDST keeps pickup windows and arrival estimates honest across the -11h offset.
- 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 Chicago does.
- Chicago: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.
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 CST (Central Standard Time)
Central Standard Time (CST) covers the central region of North America. It is the second most populous time zone in the US, including major cities like Chicago, Houston, and Dallas. CST is also used in Mexico City and much of Central America including Guatemala, Honduras, El Salvador, and Costa Rica. During summer, most of the US and Canada switch to Central Daylight Time (CDT, UTC-05:00), while Mexico and Central American countries generally remain on CST.
Best time to call between BDST and Chicago
With a -11h offset there is no overlap inside a normal 9 AM – 5 PM day. Chicago opens at 9:00 AM CDT, 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 Chicago 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 Chicago (BDST UTC+06:00 → CDT 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.
🕐 Daylight Saving Time Info
BDST
Does not observe DST
Chicago
☀ Currently in DST
Standard: UTC-06:00 · DST: UTC-05:00
Clocks fall back on Sun, Nov 1, 2026
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 BDST and Chicago?
BDST (BDST, UTC+06:00) is 11 hours behind Chicago (CDT, UTC-05:00). The gap is currently -11h.
How do I convert BDST time to Chicago time?
Add -11h to BDST local time. For example, 9:00 AM in BDST is 10:00 PM in Chicago (previous day).
What time is it in Chicago right now?
Chicago uses CDT 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 Chicago 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 Chicago.
Which is behind, BDST or Chicago?
BDST is 11 hours behind Chicago. When it is 12:00 PM in BDST it is 1:00 AM in Chicago.
Do BDST and Chicago use different time zones?
BDST uses BDST at UTC+06:00, while Chicago (USA) uses CDT at UTC-05:00. The IANA identifiers are Asia/Dhaka and America/Chicago.
Does daylight saving time affect the BDST–Chicago difference?
Yes at the moment: Chicago is on daylight saving time and BDST is not, so the -11h gap shifts by an hour when exactly one of them changes clocks.
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 Chicago?
Not normally. The -11h gap only pushes the date over the previous day.
What is the time difference between BDST and Chicago?
Chicago is -11h from BDST.
What timezone is BDST in?
BDST operates on its local timezone.
What timezone is Chicago in?
Chicago operates on Central Time (CST/CDT), 1 hour behind New York. Home to CME and CBOE, Chicago is a global center for derivatives trading.
What are the business hours in Chicago?
Standard business hours in Chicago are 8:00 AM - 5:00 PM CST.
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.
Which cities are in the CST timezone?
Major cities in the CST timezone include Chicago, Houston, Dallas, San Antonio, Mexico City, Austin, Winnipeg, Memphis.
What is the UTC offset for CST?
Central Standard Time (CST) is at UTC-06:00. During daylight saving time, it shifts to CDT.
What should I know about the CST timezone?
CST covers 20 US states fully or partially. Chicago and Houston are the two largest cities in the Central Time Zone.
When is it midnight in BDST, what time is it in Chicago?
When it is 12:00 AM (midnight) in BDST (BDST), it is -11h later in Chicago (CST).
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See every conversion from BDST →·See every conversion from Chicago →