I'd like to avoid a situation where my project gets buried under a flood of other posts and nobody sees it. I'd also like to avoid a situation where I submit the project at a time that nobody is active on HN, and nobody sees it.
For folks who have submitted projects, or dang, what is the best time to submit projects to HN for maximum engagement? Thanks.
If everyone is going to a place, then the place is nothing special anymore. If everyone wear the same, the wore isn't special anymore. Everyone has the same aim as you. The aim is the same like "when to send the newsletter out, so it has the best reading reach?"
But, if everyone, who want his newsletter to be read, follow some guru tips, they land all in the same inbox at the same time.
So.. what's more important is to have a good catchy subject and actually offer something.
The posting time is irrelevant then.
May be you think twice on marketing. It's good work invested.
Peace.
A bit before noon most days, just after midnight on Mondays.
Generally, having a guest/anonymous account that can be upgraded to a full account after the user decides it's worth saving their work more permanently is good UX.
Also "Show HN" posts get a slight advantage because they stay alive a little longer on: https://news.ycombinator.com/show
(Currently ~3 days vs. 1 day on front page)
I have never posted any story with regard to time of day. But I've also never felt I had a success flood.
I have been told to consider re-posting after a week or two if it doesn't garner reactions. Inside that timeframe you might be seen as a being a bit over-eager/spammy.
Perhaps choose a time where if there's traction, you'll be there on your project to troubleshoot unexpected problems (though it could be 10k hits, or it could be 100 hits, so do have some hope limitation).
If it's really interesting for you, keep posting about it though a blog about a feature; passion burns through fog.