ROB- that’s not the Rambam she’s referring to, the Rambam says that one should break up his LEARNING day into 3, and says “keitzad haya ba’al umonas v’haya osek b’mlachto 3 sha’os v’lomed 9 sha’os, etc.” that’s the one, I forget off hand where it is, (I don’t have a Rambam handy now, sorry) but it’s in hilchos Talmud Torah, the 2nd or 3rd Perek I believe, but I’m not sure exactly. And the Biur Halacha I quoted earlier (resh lamed alef) is the one where he calls it a hor’as sha’ah like she said as well.
