It is in minutes, as per https://news.ycombinator.com/item?id=231024 https://news.ycombinator.com/item?id=231024 I note that it specifically mentions being a w

It is in minutes, as per https://news.ycombinator.com/item?id=231024 https://news.ycombinator.com/item?id=231024 I note that it specifically mentions being a window for edits prior to the comments going out in RSS feeds, and not intended explicitly as a deletion window, so it's still probably best not to make posts and then delete them (I used to have a pretty bad habit about it until the mods reached out).