This is what i got from Kaal Ratri
Kalaratri in Purana glossary... Ā« previous Ā· [K] Ā· next Ā»
KÄlarÄtri (ą¤ą¤¾ą¤²ą¤°ą¤¾ą¤¤ą„रि, āthe night of timeā) is a name of the Goddess RaudrÄ« referring to her terrific form engaged in destruction, according to the VarÄhapurÄį¹a chapter 96. RaudrÄ« is the form of TrikalÄ having a black body representing the energy of MaheÅvara (Åiva). TrikalÄ is the name of a Goddess born from the combined looks of BrahmÄ, Viį¹£į¹u and MaheÅvara (Åiva).
Source: Wisdom Library: VarÄha-purÄį¹a
KÄlarÄtri (ą¤ą¤¾ą¤²ą¤°ą¤¾ą¤¤ą„रि).āThe DevatÄ presiding over the night on the eve of death. The fierce aspect of the DevatÄ is described in the MahÄbhÄrata as follows:ā
Coal-black in colour, with swollen mouth and eyes and wearing red garlands and clothingsāthus appeared the woman (DevatÄ) presiding over the death-night. With the fierce cord in her hand she drags away the souls of the dead. (Sauptika Parva, Chapter 9).
Source: archive.org: Puranic Encyclopaedia
So basically Pratipada Amavasya takes place in the period of time when death looms over Daayanvanshi's - KaalRatri according to Nazar lore I think !