Thailand to BDST
-1hThailand
ICTSOURCEBDST
BDSTGreen rows indicate typical business hours (9 AM - 5 PM)
ICT and BDST on the World Map
The map below highlights the ICT (Indochina Time) and BDST (Bangladesh Standard Time) timezone regions across the globe.
ICT – Indochina Time
UTC+07:00Indochina Time (ICT) is the time zone for Vietnam, Thailand, Laos, and Cambodia, 7 hours ahead of UTC.
- •Bangkok is one of the most visited cities in the world.
- •ICT is 12 hours ahead of EST.
- •Thailand, Vietnam, and Cambodia all share ICT.
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).
Understanding the -1h Gap: Thailand vs BDST
Thailand runs on Indochina Time (ICT) at UTC+07:00. BDST runs on Bangladesh Standard Time (BDST) at UTC+06:00. That puts Thailand 1 hour behind BDST — a difference of -1h at the current offsets.
In practice, when it is 9:00 AM in Thailand it is 8:00 AM in BDST. Midnight in Thailand is 11:00 PM in BDST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Thailand to BDST time conversion table
| Thailand (ICT) | BDST (BDST) | Day |
|---|---|---|
| 12:00 AM | 11:00 PM | previous day |
| 6:00 AM | 5:00 AM | same day |
| 7:00 AM | 6:00 AM | same day |
| 8:00 AM | 7:00 AM | same day |
| 9:00 AM | 8:00 AM | same day |
| 12:00 PM | 11:00 AM | same day |
| 3:00 PM | 2:00 PM | same day |
| 5:00 PM | 4:00 PM | same day |
| 6:00 PM | 5:00 PM | same day |
| 9:00 PM | 8:00 PM | same day |
Why people convert Thailand to BDST time
- Scheduling a call from Thailand to BDST: a 10:00 AM start in Thailand lands at 9:00 AM in BDST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Thailand and BDST are inside the 9-to-5 working day between 10:00 AM and 5:00 PM ICT time (9:00 AM–4:00 PM BDST). That is roughly 7 hours of usable overlap.
- Coordinating a Thailand-based team with BDST 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 ICT" is unambiguous; "3 PM" across a -1h gap is not.
- Block 10:00 AM–5:00 PM ICT as the recurring meeting window if you work primarily from Thailand and need BDST colleagues present.
About ICT (Indochina Time)
Indochina Time (ICT) is used across Southeast Asia including Vietnam, Thailand, Laos, and Cambodia. Indonesia (Western time, WIB) also uses UTC+07:00. ICT does not observe daylight saving 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.
Best time to call between Thailand and BDST
Both Thailand and BDST sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM ICT, which is 9:00 AM–4:00 PM BDST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Thailand and BDST share 7 hours of working-hours overlap (10:00 AM–5:00 PM ICT), so scheduling a live meeting is straightforward.
Thailand is 1 hour behind BDST (ICT UTC+07:00 → BDST UTC+06:00). The shared working window is 10:00 AM–5:00 PM ICT. 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 Thailand and BDST?
Thailand (ICT, UTC+07:00) is 1 hour behind BDST (BDST, UTC+06:00). The gap is currently -1h.
How do I convert Thailand time to BDST time?
Add -1h to Thailand local time. For example, 9:00 AM in Thailand is 8:00 AM in BDST.
What time is it in BDST right now?
BDST 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 -1h offset from Thailand.
What is the best time to call BDST from Thailand?
Call between 10:00 AM and 5:00 PM ICT — that maps to 9:00 AM–4:00 PM BDST and keeps both parties inside the working day.
Which is behind, Thailand or BDST?
Thailand is 1 hour behind BDST. When it is 12:00 PM in Thailand it is 11:00 AM in BDST.
Do Thailand and BDST use different time zones?
Thailand (Thailand) uses ICT at UTC+07:00, while BDST uses BDST at UTC+06:00. The IANA identifiers are Asia/Bangkok and Asia/Dhaka.
Does daylight saving time affect the Thailand–BDST difference?
Neither zone observes daylight saving time, so the -1h offset between Thailand and BDST is fixed all year.
Which other cities share Thailand's time zone?
ICT also covers Bangkok, Ho Chi Minh City, Hanoi, Jakarta, Phnom Penh, Vientiane.
Which countries use ICT, Thailand's zone?
ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).
Is there a day difference between Thailand and BDST?
Not normally. The -1h gap only pushes the date over the previous day.
What is the time difference between Thailand and BDST?
BDST is -1h from Thailand.
What timezone is Thailand in?
Thailand operates on its local timezone.
What timezone is BDST in?
BDST operates on its local timezone.
Which countries use ICT (Indochina Time)?
ICT is used in Thailand, Vietnam, Cambodia, Laos, Indonesia (WIB).
Does ICT observe daylight saving time?
No, ICT does not observe daylight saving time and remains at UTC+07:00 year-round.
What are some interesting facts about ICT?
Bangkok is one of the most visited cities in the world. ICT is 12 hours ahead of EST.
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 Thailand, what time is it in BDST?
When it is 12:00 AM (midnight) in Thailand (ICT), it is -1h later in BDST (BDST).
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