HST to Dhaka
+16hHST
HSTSOURCEDhaka
BDSTGreen rows indicate typical business hours (9 AM - 5 PM)
HST and BDST on the World Map
The map below highlights the HST (Hawaii Standard Time) and BDST (Bangladesh Standard Time) timezone regions across the globe.
HST – Hawaii Standard Time
UTC-10:00Hawaii Standard Time (HST) is the time zone for the Hawaiian Islands, 10 hours behind UTC.
- •Hawaii does not observe daylight saving time.
- •HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
- •Hawaii is one of only two US states that don't observe DST (the other is Arizona).
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.
Understanding the +16h Gap: HST vs Dhaka
HST runs on Hawaii Standard Time (HST) at UTC-10:00. Dhaka runs on Bangladesh Standard Time (BDST) at UTC+06:00. That puts HST 16 hours ahead of Dhaka — a difference of +16h at the current offsets.
In practice, when it is 9:00 AM in HST it is 1:00 AM in Dhaka on the next day. Midnight in HST is 4:00 PM in Dhaka. Neither zone observes daylight saving time, so the offset between them stays constant all year.
HST to Dhaka time conversion table
| HST (HST) | Dhaka (BDST) | Day |
|---|---|---|
| 12:00 AM | 4:00 PM | same day |
| 6:00 AM | 10:00 PM | same day |
| 7:00 AM | 11:00 PM | same day |
| 8:00 AM | 12:00 AM | next day |
| 9:00 AM | 1:00 AM | next day |
| 12:00 PM | 4:00 AM | next day |
| 3:00 PM | 7:00 AM | next day |
| 5:00 PM | 9:00 AM | next day |
| 6:00 PM | 10:00 AM | next day |
| 9:00 PM | 1:00 PM | next day |
Why people convert HST to Dhaka time
- Scheduling a call from HST to Dhaka: a 10:00 AM start in HST lands at 2:00 AM in Dhaka the next day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +16h gap: HST 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 1:00 AM in HST.
- Coordinating a HST-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 HST" is unambiguous; "3 PM" across a +16h gap is not.
- With a +16h gap there is no shared 9-to-5 window, so alternate the early start: one week HST takes the early slot, the next week Dhaka does.
About HST (Hawaii Standard Time)
Hawaii Standard Time (HST) is used in the state of Hawaii and does not observe daylight saving time. This makes HST one of the most consistent time zones in the US. The Hawaiian Islands are among the last places on Earth to see a new calendar day.
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 HST and Dhaka
With a +16h offset there is no overlap inside a normal 9 AM – 5 PM day. Dhaka opens at 9:00 AM BDST, which is 1:00 AM in HST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
HST and Dhaka have no shared working hours because of the +16h gap. Teams need to alternate early starts or rely on asynchronous handovers.
HST is 16 hours ahead of Dhaka (HST UTC-10:00 → 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 HST and Dhaka?
HST (HST, UTC-10:00) is 16 hours ahead of Dhaka (BDST, UTC+06:00). The gap is currently +16h.
How do I convert HST time to Dhaka time?
Add +16h to HST local time. For example, 9:00 AM in HST is 1:00 AM in Dhaka (next day).
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 +16h offset from HST.
What is the best time to call Dhaka from HST?
There is no shared working-hours window because of the +16h gap. The closest option is 1:00 PM in HST, which is 5:00 AM in Dhaka.
Which is ahead, HST or Dhaka?
HST is 16 hours ahead of Dhaka. When it is 12:00 PM in HST it is 4:00 AM in Dhaka.
Do HST and Dhaka use different time zones?
HST uses HST at UTC-10:00, while Dhaka (Bangladesh) uses BDST at UTC+06:00. The IANA identifiers are Pacific/Honolulu and Asia/Dhaka.
Does daylight saving time affect the HST–Dhaka difference?
Neither zone observes daylight saving time, so the +16h offset between HST and Dhaka is fixed all year.
Which other cities share HST's time zone?
HST also covers Honolulu, Hilo, Kailua, Pearl City, Kapolei.
Which countries use HST, HST's zone?
HST is used in United States (Hawaii).
Is there a day difference between HST and Dhaka?
Sometimes. The +16h gap is large enough that 8:00 PM or later in HST already falls on the next day in Dhaka.
What is the time difference between HST and Dhaka?
Dhaka is +16h from HST.
What timezone is HST in?
HST 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 HST (Hawaii Standard Time)?
HST is used in United States (Hawaii).
Does HST observe daylight saving time?
No, HST does not observe daylight saving time and remains at UTC-10:00 year-round.
What are some interesting facts about HST?
Hawaii does not observe daylight saving time. HST is 5 hours behind EST in winter and 6 hours behind EDT in summer.
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 HST, what time is it in Dhaka?
When it is 12:00 AM (midnight) in HST (HST), it is +16h later in Dhaka (BDST).
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