When to Post on HN: Analyzed 23k posts(June 2025)

Conventional wisdom says: Post Tuesday morning for max traffic. Data says: That’s wrong. (at least, in June 2025)

1. Best Time of Day Post between midnight–1AM → 2x more comments than average, yet only 2% of posts are made then.

Avg votes: 25.7 (vs 18 overall) Avg comments: 20 (vs 10 overall)

Other high-performing time slots: Votes: 4AM, 7AM, 8–10PM, 10PM+ → Avg votes > 20 Comments: 9PM, 11PM → Avg comments > 11

2. Best Day of Week Upvotes: Saturday/Sunday → Avg votes > 19 Comments: Sunday/Monday → Avg comments > 10

But beware:

18%+ of posts happen on Monday → high competition

Sunday has lower competition, yet performs well—easiest day to hit the front page with the same vote count.

TL;DR For the best shot at visibility: Post Sunday, between midnight and 1AM.

See link for full data analysis