Seven39

Consumer and social

time-boxed social media

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Seven39

A social media app that is only open for 3 hours every evening

seven39.com

#time-boxed social media#digital wellbeing#social network#screen time

735points
349comments
#35of 3,837 in 2025
Top 1%of 2025 by points

How HN took it

CuriousMostly questions and neutral comments

33 positive, 84 neutral or asking, 2 mixed, 44 critical, out of 163 comments about the project. Thread score -0.08.

Idea: 29 for, 23 againstExecution: 1 for, 13 againstDesign: 0 for, 6 againstPrivacy: 0 for, 1 againstDocs: 0 for, 1 against

The thread, comment by comment

Each row is a top-level comment and its replies, in HN's order. Select a cell to open that comment on HN.

positive neutral or mixed critical about another commenter or something else the maker

What HN said

What people liked

  • Idea is fun and interesting as a restriction experiment

    From 4 comments
    • I think it's a really cool idea. I signed up because I had a brain fart and thought that "EST" was "European Standard Time" (I was of course thinking of CET). So yeah, the…
      simonkagedal on HN
    • When I lost my job the local unemployment office website would “close” outside of real world office hours. I thought that was annoying but also amusing. I do really like this…
      duxup on HN
    • Neat idea. I always thought it would be interesting to have social media with limitations of some sort, such as limiting number of posts per day per person (to discourage people…
      allenu on HN
    • Interesting idea. Among my projects, there's a website blocker, and wasting time on social media is really one of the pain points for many people. I’m curious to see the…
      kotik11 on HN

Objections

  • Time zones make a single EST window exclude most of the world

    From 4 comments
    • It's an interesting idea, but if it's only open at a convenient time for a particular group, it's going to lack diverse and worldwide perspectives, and those are important for…
      danpalmer on HN
    • I think there is an idea there, but this obviously won't work. Here are some large drawbacks: * timezones, most of the world is not on EST. If you make it per timezone, then not…
      xtrimsky1234 on HN
    • Time zones are a problem. It will be 5am for me next time this will be open which is too early but since it opens for 3 hours, I might be able to check in for the second half of…
      FrequentLurker on HN
    • > It is just based on EST for now, sorry. What happens during dailight savings time?
      adolph on HN
  • A fixed three-hour evening window doesn't fit everyone's schedule

    From 2 comments
    • I think there is an idea there, but this obviously won't work. Here are some large drawbacks: * timezones, most of the world is not on EST. If you make it per timezone, then not…
      xtrimsky1234 on HN
    • I love internet concepts like this. Just silly fun experiments. This one appears to exclude anyone in a relationship in almost every US timezone.
      mtillman on HN

Requests

  • Use per-user or rotating time windows instead of fixed EST

    From 4 comments
    • Going perhaps even further in this direction, the 3 hour window could shift by an hour every day. All the other solutions I see to the time zone problem are pushing the idea in…
      furyofantares on HN
    • Great idea, but it should be open 24/7 with eight 3-hour windows. One account can only use a single window during the 24-hour period. This will handle the timezone differences.
      improbableinf on HN
    • I think the timezones issue can be solved by the user just initially picking their timezone and it stays sticky and you can't change it (maybe for a fee you could = some income…
      nout on HN
    • This really did put a smile on my face. Though my first thought was the timezone issue. Maybe have a user register to a timezone which can be changed twice a month or so (for…
      qwertox on HN
  • Show local time of the window to visitors

    From 1 comment
    • There should be a tooltip or an element (with text) displaying my current time in comparison to the already specified time, just so I can tell when that window would be in my…
      johnisgood on HN

Questions

  • What happens during daylight saving time?

    From 1 comment
    • > It is just based on EST for now, sorry. What happens during dailight savings time?
      adolph on HN

Alternatives named

  • BeReal

    From 2 comments
    • Sounds like a variant of the "BeReal" concept: "Its main feature is a daily notification that encourages users to share photos of themselves with friends in their day-to-day…
      xnx on HN
    • Reminds me a little bit of early days of BeReal.
      nkotov on HN
  • Dispo

    From 1 comment
    • This is a fantastic idea. It reminded me of the Dispo app (not sure if people use it anymore) where pictures you take show up only the next day morning. It might be alright to…
      jeswin on HN

Category, keywords, summaries and labels on this page were made by AI (Thread Reader v2) and not checked by hand. Each point links to the comments it came from.

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