Another close figure: The sidereal day is 3 minutes, 56 seconds shorter than the solar day. If the solar day has a negative leap second, the difference is 3'55".
I do not know what some terms mean, but I think that is not another close figure, that is the same figure.
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 119.
Plans for next chapter release:
There is a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)