[dang]

That's an artifact of HN's second-chance system. The system is described at https://news.ycombinator.com/item?id=26998308 and links back from there. About the timestamps, there are past explanations here: https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que....

Sorry for the confusion—I know it's weird but the alternative turns out to be even more confusing and we've never figured out how to square that circle!

[malodyets]

I don’t know how dang does it, but the internet would be so much better if every community had even half as good a moderator.