Direct answer: Bangladesh runs on UTC+6 year-round. Overlap with the UK and EU is a real few hours each business day; overlap with Australia's east coast is strong; overlap with the US during standard hours is minimal to none. None of that makes offshore development impractical — it determines whether you need a live-call- heavy process (which will struggle) or an async-first, written-specification process (which works regardless of the gap).
The actual overlap hours, region by region
Against UK business hours (roughly 9am–5pm GMT/BST), Dhaka's working day (roughly 9am–6pm, UTC+6) lands in the late afternoon to evening UK time — a genuine few-hour overlap window most days. Against Australia's east coast (AEST, UTC+10), Dhaka business hours fall squarely in the Australian afternoon and early evening, giving strong same-day overlap. Against the US (Eastern, UTC-4/-5), Dhaka business hours land in the American late night to early morning — there is close to no live overlap during standard hours on either side, which is the scenario that most requires a deliberate async process rather than assuming a call will bridge the gap.
| Market | Timezone | Gap vs. Dhaka (UTC+6) | Realistic Overlap |
|---|---|---|---|
| US (Eastern) | UTC-5/-4 | ~10–11 hrs | Near zero — async-first is mandatory |
| UK | UTC+0/+1 | ~5–6 hrs | 2–3 hrs, Dhaka afternoon / UK morning |
| EU / Ireland / Netherlands | UTC+1/+2 | ~4–5 hrs | 2–3 hrs, similar to UK |
| UAE / Gulf | UTC+3/+4 | ~2–3 hrs | Most of the Dhaka workday — the strongest overlap of any major market |
| Australia (varies by state) | UTC+8 to +11 | ~2–5 hrs, seasonal | Strong, but confirm current DST offset |
Making minimal overlap actually work
The teams that succeed across a large timezone gap share one habit: they put the decision-making into writing instead of relying on live conversation to happen. A clear, written specification becomes the source of truth both sides work from independently. Daily progress gets logged as a written standup or a short recorded update rather than a synchronous meeting neither side can consistently attend. See our guide to writing a software brief for how to produce a spec detailed enough to support this kind of async process.
Handling urgent issues without live overlap
The real risk in a large timezone gap is not day-to-day collaboration — it is what happens when something breaks outside either side's working hours. This is where a genuinely round-the-clock support line matters more than forcing a live meeting overlap: an issue reported at 2am your time should be acknowledged immediately, not queued until the next business-hours window. Ask any vendor for a specific, concrete answer about how this is actually staffed, not a general assurance.
When a live call is still worth scheduling
Async-first does not mean call-free. Project kickoff, major milestone reviews, and any point where a requirement is ambiguous enough that written back-and-forth would take longer than a single conversation are all worth a scheduled call — placed at the edge of whatever overlap exists, even if that means early morning or late evening for one side. A short, well-prepared weekly or biweekly call is usually enough; daily live meetings are rarely necessary once the async process is solid.
The tools that make this concrete, not aspirational
A shared task tracker both sides update directly (not relayed through a middleman), a written specification as the single source of truth instead of scattered chat history, and a visible commit history in a shared repository so progress is verifiable without a status call. This is the same discipline any strong remote team uses — a large timezone gap just makes the absence of it far more costly than it would be in the same timezone.
For how our own 24/7-staffed support and engagement process is structured for international clients specifically, see the international hiring page, or the region-specific pages for the US, UK, and Australia.
Frequently Asked Questions
Bangladesh runs on Bangladesh Standard Time, UTC+6, with no daylight saving changes. Overlap with UK/EU business hours is typically a few hours in the UK/EU afternoon (Dhaka morning to early afternoon covers UK late morning through afternoon). Overlap with Australia's east coast is strong — Dhaka business hours land in the Australian afternoon/evening the same day. Overlap with the US is minimal to none during standard business hours on either side, which is the case that most needs an async-first process rather than relying on live meetings.
Yes, but only with a deliberate async process — written specifications instead of verbal-only briefings, daily written standups or short recorded updates instead of live daily calls, and a shared task tracker both sides check independently. Teams that rely on spontaneous live conversation to clarify requirements struggle across a large timezone gap; teams that document decisions in writing do not, because the documentation itself becomes the communication channel.
This is why a genuinely 24/7-staffed support line matters more than trying to force live meeting overlap — an urgent production issue should be reported and acknowledged the moment it happens, not queued until the next overlap window. Ask any vendor directly what actually happens if something breaks at 2am your time, and get a specific answer, not a general reassurance.
Yes, for the moments that benefit most from synchronous discussion — kickoff, major milestone reviews, and any point where requirements are ambiguous enough that written back-and-forth would be slower than a single call. A short weekly or biweekly call scheduled at the edge of the overlap window (early morning or late evening on one side) is usually enough; daily live calls are rarely necessary if the async process is solid.
A shared task tracker (Jira, Linear, Trello) both sides update directly rather than relaying status through a middleman, a written specification or requirements doc as the source of truth instead of scattered chat messages, and a shared repository with a visible commit history so progress is verifiable without needing a live update. None of this is exotic — it is the same discipline good remote teams use even in the same timezone.
Not inherently — it changes the communication process required, not the ceiling on quality. Projects with a clear, well-documented specification travel well across any timezone gap. Projects that depend on constant live back-and-forth to figure out what to build next struggle regardless of who is building them; the fix is tightening the specification process, not necessarily changing timezone.