འཕགས་པ་གནས་འཇག་པའ་མད་ཞས་བྱ་བ notes.9

notes.9

9. The term “special days” (cho ’phrul gyi phyogs) likely reflects the Sanskrit prātihāryapakṣa or the Pali pāṭihāriyapakkha , defined in The Pali Text Society’s Pali–English Dictionary as “an extra holiday, an ancient festival, not now kept.” (Here, “extra” likely means in addition to the new moon, the full moon, and the two days that fall halfway in between these two.) Ultimately, there is a lack of commentarial and scholarly consensus regarding what, exactly, this special holiday or festival period once entailed and when it is supposed to have occurred. However, certain sources take care to note that “special days” does not necessarily mean single extra days during the lunar fortnight. For monastics, at least, it might also refer to longer stretches of time, such as the three months of the summer rains retreat. On this topic, see, for example, Bodhi 2003, p. 480, n. 573; Bodhi 2012, p. 1642, n. 387.