When to post tech content from Bangladesh to reach US and EU readers

I post dev content from Dhaka. My readers are in San Francisco, New York, Berlin, London, and Bangalore. Most of them are asleep when I am awake. For a while I just posted whenever I finished writing and hoped for the best, which works about as well as throwing a paper airplane out a window and asking it to find an address.
This is the schedule that finally started getting read, and the reasons it works.
Timezone base is Asia/Dhaka, UTC+6. The audience I care about is US (UTC-5 and -8), EU (UTC+0 and +2), and India (UTC+5:30). Last reviewed on 2026-05-18.
Master table

| Platform | Best day | Best BDT window | Audience overlap |
|---|---|---|---|
| Hacker News | Tue–Thu | 8:30–10:00 PM | US PT 8:30–10am (front-page filing window) |
| Tue–Thu | 6:30–9:00 PM | US ET morning commute + EU lunch | |
| X / Twitter | Tue–Thu | 7:00–10:00 PM + 11 PM–1 AM | US ET morning, US PT lunch |
| Reddit (r/programming, r/webdev, r/nextjs) | Mon–Wed | 7:00–9:00 PM | US ET 9–11am, peak comment velocity |
| Dev.to | Tue–Thu | 6:30–8:30 PM | US ET morning, EU late afternoon |
| Hashnode | Tue–Thu | 7:00–9:00 PM | Same logic, smaller audience |
| Wed–Thu | 8:00–11:00 PM | US ET 10am–1pm, EU late evening | |
| Tue–Fri | 9:00–11:00 PM | IN evening + EU afternoon + US ET morning | |
| Threads | Tue–Thu | 10:00 PM–12:00 AM | US ET lunch, IN late evening |
The killer single slot

If you only have time for one post, on one platform, post it to Hacker News between 8 and 10 PM Dhaka time on a Tuesday or Wednesday.
That window catches three things at once. The HN /newest queue is shallow because US dev folks have just opened their laptops and submissions are sparse. US East Coast is on the morning scroll. EU is in late afternoon. You are competing against fewer posts for the front page than at any other hour of the day.
A stagger plan: one post, all nine platforms, Tuesday

The instinct is to fire all the platforms at the same moment. Do not. It looks bot-like, and you split your own attention across nine sets of replies during the only hour that engagement actually matters.
Spread them out instead.
6:30 PM BDT → LinkedIn (catches EU + US ET pre-coffee)
7:00 PM BDT → Dev.to + Hashnode (SEO tail, low velocity)
7:30 PM BDT → X single tweet
8:00 PM BDT → Reddit (one sub; wait 24h before others to avoid spam flag)
8:30 PM BDT → Hacker News ← most important slot
9:30 PM BDT → Facebook
10:00 PM BDT → Instagram + Threads
11:00 PM BDT → X thread (catches US PT lunch)
What I have learned to avoid

- Friday evening and weekends Dhaka time. The US and EU dev audience is offline. Engagement falls off a cliff.
- Monday morning Dhaka. US is asleep, EU has not really started yet.
- Posting everything at the same moment. Spam flag risk, and you cannot keep up with replies on nine threads at once.
- HN before 8 PM Dhaka. You submit before US wakes. Your post is buried thirty pages deep before anyone sees it.
Caveats
The HN math is empirical, not magic. The /newest queue is shallow in the US morning low-volume hours, which happens to map to 8–10 PM Dhaka. If US dev folks start opening their laptops at a different time, this window moves with them.
Reddit timing matters less than picking the right subreddit. The wrong sub at the perfect time still flops. Match each sub's rules first, then worry about the clock.
Instagram and Threads are low ROI for dev writing unless you have a strong visual asset. A carousel of screenshots can do well. A text post about TypeScript generics will not.
Ramadan and US holidays shift these windows by an hour or two. So does Daylight Saving Time. The US is on DST roughly mid-March to early November. The windows above assume DST is active. In US winter, shift the US-aligned slots about an hour later in Dhaka time.
Quick conversions
| US ET | US PT | EU CET | BDT |
|---|---|---|---|
| 6 AM | 3 AM | 12 PM | 4 PM |
| 9 AM | 6 AM | 3 PM | 7 PM |
| 10 AM | 7 AM | 4 PM | 8 PM |
| 12 PM | 9 AM | 6 PM | 10 PM |
| 3 PM | 12 PM | 9 PM | 1 AM (next day) |
Per-platform notes
Hacker News

- Front page is decided in the first ninety minutes after submit. If there is no traction by then, the post is dead.
- Title matters more than time. Time only matters if the title is good.
- Do not self-upvote or ask friends to upvote. HN catches ring voting and silently shadowbans the post.
- The best signal for "is now a good time to submit" is to watch
news.ycombinator.com/newestbetween 8 and 10 AM US Pacific. If the queue is moving slowly, you have a window.

- Post in the feed, not as an article. Articles get suppressed.
- The first sixty minutes of engagement determines reach for the next twenty-four hours. Be available to reply.
- Comment on your own post within five minutes with a follow-up insight to seed the thread.
X / Twitter

- For a cold audience, a single tweet beats a thread. Threads need an existing follower base.
- If you do post a thread, reply to your first tweet within thirty seconds. That is an algorithm signal.
- Do not put the link in the first tweet of a thread. Put it in the last reply. Links in the first tweet drop reach.

- Match each sub's rules exactly. r/programming bans most blog links outright.
- Good fits: r/webdev has a self-promo thread on Saturdays, r/nextjs is open, r/SideProject runs on Sundays.
- One sub per day, maximum. Cross-posting the same content the same week trips spam filters.
Dev.to + Hashnode

- Set the canonical URL to your own site (the
canonical_urlfrontmatter). Otherwise Google indexes the Dev.to copy and not yours. - Pick four high-traffic tags max:
webdev,javascript,nextjs,typescript.
Instagram / Threads / Facebook

- Lowest ROI for dev content. Skip unless you have a strong screenshot or video.
- Carousel posts beat single image by three to five times on Instagram.
Newsletter
Get new posts in your inbox.
Honest essays on engineering, leadership, and the things I’m figuring out. No spam, ever.