BDST to GMT
-6hBDST
BDSTSOURCEGMT
GMTGreen rows indicate typical business hours (9 AM - 5 PM)
BDST and GMT on the World Map
The map below highlights the BDST (Bangladesh Standard Time) and GMT (Greenwich Mean 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).
GMT – Greenwich Mean Time
UTC+00:00Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London. It is the same as UTC+00:00.
- •GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London.
- •The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
- •GMT and UTC are often used interchangeably, but UTC is based on atomic clocks.
- •Iceland uses GMT year-round and never observes daylight saving time.
- •The UK switches from GMT to BST (British Summer Time) in late March each year.
Everything You Need to Know About BDST and GMT Time
BDST runs on Bangladesh Standard Time (BDST) at UTC+06:00. GMT runs on Greenwich Mean Time (GMT) at UTC+00:00. That puts BDST 6 hours behind GMT — a difference of -6h at the current offsets.
In practice, when it is 9:00 AM in BDST it is 3:00 AM in GMT. Midnight in BDST is 6:00 PM in GMT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
BDST to GMT time conversion table
| BDST (BDST) | GMT (GMT) | Day |
|---|---|---|
| 12:00 AM | 6:00 PM | previous day |
| 6:00 AM | 12:00 AM | same day |
| 7:00 AM | 1:00 AM | same day |
| 8:00 AM | 2:00 AM | same day |
| 9:00 AM | 3:00 AM | same day |
| 12:00 PM | 6:00 AM | same day |
| 3:00 PM | 9:00 AM | same day |
| 5:00 PM | 11:00 AM | same day |
| 6:00 PM | 12:00 PM | same day |
| 9:00 PM | 3:00 PM | same day |
Why people convert BDST to GMT time
- Scheduling a call from BDST to GMT: a 10:00 AM start in BDST lands at 4:00 AM in GMT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both BDST and GMT are inside the 9-to-5 working day between 3:00 PM and 5:00 PM BDST time (9:00 AM–11:00 AM GMT). That is roughly 2 hours of usable overlap.
- Watching a live event or market open: BDST viewers need 3:00 AM in GMT to catch a 9:00 AM start there, and 6:00 AM if the event is anchored to BDST.
- Always state the zone abbreviation, not just the hour. "3:00 PM BDST" is unambiguous; "3 PM" across a -6h gap is not.
- Block 3:00 PM–5:00 PM BDST as the recurring meeting window if you work primarily from BDST and need GMT colleagues present.
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 GMT (Greenwich Mean Time)
Greenwich Mean Time (GMT) is the clock time at the Royal Observatory in Greenwich, London, which sits on the Prime Meridian (0° longitude). GMT serves as the reference point from which all other time zones are calculated. The United Kingdom uses GMT during winter months and switches to British Summer Time (BST, UTC+01:00) from late March to late October. Several West African nations use GMT year-round. GMT is often used interchangeably with UTC (Coordinated Universal Time), although technically they are different – UTC is based on atomic clocks while GMT is based on Earth's rotation.
Best time to call between BDST and GMT
Both BDST and GMT sit inside the 9 AM – 5 PM working day between 3:00 PM–5:00 PM BDST, which is 9:00 AM–11:00 AM GMT. That gives roughly 2 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
BDST and GMT overlap for about 2 hours during the working day — enough for meetings if you avoid the edges of the window.
BDST is 6 hours behind GMT (BDST UTC+06:00 → GMT UTC+00:00). The shared working window is 3:00 PM–5:00 PM BDST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
BDST
Does not observe DST
GMT
☀ Currently in DST
Standard: UTC+00:00 · DST: UTC+01:00
Clocks fall back on Sun, Oct 25, 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 GMT?
BDST (BDST, UTC+06:00) is 6 hours behind GMT (GMT, UTC+00:00). The gap is currently -6h.
How do I convert BDST time to GMT time?
Add -6h to BDST local time. For example, 9:00 AM in BDST is 3:00 AM in GMT.
What time is it in GMT right now?
GMT uses GMT at UTC+00:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -6h offset from BDST.
What is the best time to call GMT from BDST?
Call between 3:00 PM and 5:00 PM BDST — that maps to 9:00 AM–11:00 AM GMT and keeps both parties inside the working day.
Which is behind, BDST or GMT?
BDST is 6 hours behind GMT. When it is 12:00 PM in BDST it is 6:00 AM in GMT.
Does daylight saving time affect the BDST–GMT difference?
Neither zone observes daylight saving time, so the -6h offset between BDST and GMT 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 GMT?
Not normally. The -6h gap only pushes the date over the previous day.
What is the time difference between BDST and GMT?
GMT is -6h from BDST.
What timezone is BDST in?
BDST operates on its local timezone.
What timezone is GMT in?
GMT 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.
Which cities are in the GMT timezone?
Major cities in the GMT timezone include London, Dublin, Lisbon, Accra, Reykjavik, Edinburgh, Casablanca, Dakar.
What is the UTC offset for GMT?
Greenwich Mean Time (GMT) is at UTC+00:00. During daylight saving time, it shifts to BST.
What should I know about the GMT timezone?
GMT is based on the Prime Meridian (0° longitude) passing through Greenwich, London. The Royal Observatory in Greenwich has been the reference point for GMT since 1884.
When is it midnight in BDST, what time is it in GMT?
When it is 12:00 AM (midnight) in BDST (BDST), it is -6h later in GMT (GMT).
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- new york to bdst
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See every conversion from BDST →·See every conversion from GMT →