Dhaka to Colombo Time
BST to IST Converter — 9 AM BST is 8:30 AM IST
Dhaka is 0 hours and 30 minutes ahead of Colombo. Convert any time between Dhaka (BST) and Colombo (IST) instantly.
Dhaka
Bangladesh
Colombo
Sri Lanka
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Time Zone Comparison
Dhaka to Colombo Time Conversion Table
| Dhaka (BST) | Colombo (IST) |
|---|---|
| 12:00 AM | 11:30 PM |
| 2:00 AM | 1:30 AM |
| 4:00 AM | 3:30 AM |
| 6:00 AM | 5:30 AM |
| 8:00 AM | 7:30 AM |
| 10:00 AM | 9:30 AM |
| 12:00 PM | 11:30 AM |
| 2:00 PM | 1:30 PM |
| 4:00 PM | 3:30 PM |
| 6:00 PM | 5:30 PM |
| 8:00 PM | 7:30 PM |
| 10:00 PM | 9:30 PM |
Dhaka & Colombo — Business & Scheduling Guide
Dhaka (Bangladesh) is a rapidly industrializing economy and garment export powerhouse, with key industries in garment manufacturing, pharmaceuticals, IT services, and remittances. Colombo (Sri Lanka) is a South Asian island economy with strategic Indian Ocean positioning, known for tourism, tea, apparel, and IT/BPO services. With a 0.5-hour time difference, professionals frequently schedule cross-border calls between these two cities for international trade, remote team collaboration, and client meetings.
Scheduling Meetings Between Dhaka and Colombo
With only a 0.5-hour gap, Dhaka and Colombo have generous overlapping work hours. Morning calls in the earlier time zone align well with mid-day in the other. Bangladeshi business hours are typically 9 AM–5 PM Sunday–Thursday, with a growing digital services sector. Sri Lankan business hours are typically 8:30 AM–5 PM, with a growing technology outsourcing sector. Most teams find that late morning to early afternoon offers the widest window for collaboration.
Daylight Saving Time Considerations
Neither Dhaka nor Colombo observes Daylight Saving Time — Dhaka stays on BST and Colombo stays on IST year-round. This makes scheduling between these two cities simpler, as the 0.5-hour time difference remains constant throughout the year with no DST surprises.
Collaboration Tools & Workflow
Teams working between Dhaka and Colombo enjoy strong real-time collaboration potential. With just a 0.5-hour time difference, daily standups, pair programming, and spontaneous video calls are all practical. Popular tools for Dhaka–Colombo teams include Slack for real-time messaging, Google Meet or Zoom for video calls, and Notion or Linear for project management. The overlapping work window is wide enough that most teams can operate nearly synchronously.
Remote Work Between Dhaka & Colombo
Dhaka, a key city in Bangladesh, and Colombo, a key city in Sri Lanka, are well-connected for remote work. With a manageable 0.5-hour time difference, distributed teams can maintain a near-synchronous workflow. Both cities have strong internet infrastructure, coworking spaces, and established remote work cultures. For freelancers and remote workers, this time zone pairing is ideal — you can serve clients in Colombo from Dhaka (or vice versa) without disrupting your standard workday.
BST to IST — Quick Reference
BST (BST) stands for the timezone used in Dhaka, Bangladesh (UTC+6). IST (IST) is the timezone used in Colombo, Sri Lanka (UTC+5:30). Dhaka is 0 hours and 30 minutes ahead of Colombo.
To convert BST to IST, subtract 0.5 hours from BST time. For example, BST 9:00 AM = IST 8:30 AM.
Key Facts
- •Time difference: Dhaka (UTC+6) is 0 hours and 30 minutes ahead of Colombo (UTC+5:30).
- •Daylight Saving Time: Dhaka does not observe DST (BST). Colombo does not observe DST (IST).
- •Regions: Dhaka is located in Bangladesh and uses the BST time zone. Colombo is located in Sri Lanka and uses the IST time zone.
- •Best time to call: The best time to call between Dhaka and Colombo is 10:00 AM to 4:00 PM in Dhaka time, when both cities have overlapping standard working hours.
Frequently Asked Questions
What is the time difference between Dhaka and Colombo?
Dhaka is 0 hours and 30 minutes ahead of Colombo.
What time is it in Colombo when it's 9 AM in Dhaka?
When it's 9:00 AM in Dhaka, it is 8:30 AM in Colombo.
What time is 9 PM BST in IST?
9 PM BST (Dhaka time) is 8:30 PM IST (Colombo time). This is a common time people check when scheduling evening calls across these two time zones.
When is the best time to schedule a meeting between Dhaka and Colombo?
The best time to schedule a meeting is between 10:00 AM to 4:00 PM in Dhaka time, when both cities are within standard working hours (9 AM – 5 PM). This gives you the maximum overlap window for real-time collaboration.
How do I convert BST to IST?
BST (BST) is the timezone for Dhaka, Bangladesh (UTC+6). IST (IST) is the timezone for Colombo, Sri Lanka (UTC+5:30). Dhaka is 0 hours and 30 minutes ahead of Colombo. Quick examples: 9 AM BST = 8:30 AM IST, 12 PM BST = 11:30 AM IST, 3 PM BST = 2:30 PM IST, 6 PM BST = 5:30 PM IST.
Is Dhaka ahead of or behind Colombo?
Dhaka is 30 minutes ahead of Colombo. When it's noon in Dhaka, it's 11:30 AM in Colombo.
Does Dhaka or Colombo change clocks for Daylight Saving Time?
No, Dhaka does not observe DST — it stays on BST year-round. Colombo does not observe DST — it stays on IST year-round.
What time is noon in Dhaka in Colombo time?
When it is 12:00 PM (noon) in Dhaka (BST), it is 11:30 AM in Colombo (IST). This is often a popular time for scheduling lunch-hour calls across the Dhaka–Colombo corridor.
What are the overlapping work hours between Dhaka and Colombo?
The overlapping work hours between Dhaka and Colombo are approximately 10:00 AM to 4:00 PM in Dhaka time, when both cities are within the standard 9 AM–5 PM workday. This is the ideal window for meetings, pair programming, and real-time collaboration.
What timezone is Dhaka in?
Dhaka is in the BST time zone (UTC+6). It is located in Bangladesh. Dhaka does not observe Daylight Saving Time.
What timezone is Colombo in?
Colombo is in the IST time zone (UTC+5:30). It is located in Sri Lanka. Colombo does not observe Daylight Saving Time.
How do I schedule a call between Dhaka and Colombo?
To schedule a call between Dhaka and Colombo, aim for the overlapping window of 10:00 AM to 4:00 PM in Dhaka time. Use Google Calendar or Calendly with both time zones visible, share the meeting invite with the IST time clearly noted, and always double-check the time difference — especially during DST transitions. Pro tip: include both local times in the calendar invite title (e.g., "Sync — 10 AM BST / 9:30 AM IST").
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