[dang]

You can look at previous HN front pages. Here's yesterday: https://news.ycombinator.com/front?day=2017-05-24.

(We count 'day' using UTC so there's overlap with today depending on where you are.)

[everybodyknows]

The article sets of adjacent days intersect. A merging query of recent days would be helpful. Viz:

    query-front-pages-recent --numdays 7 |
        sort --key=HN_priority | uniq