अर्धन्यूनश्चान्द्रमासः ॥ कZ_०२.२०.४९ ॥
ardhanyūnaś cāndramāsaḥ
चन्द्रमास आधा दिन कम (अर्थात् उनतीस और आधा अहोरात्र) होता है।
It gives a computable conversion rule between lunar dating (used in society) and fixed administrative cycles (wages, audits, deadlines).
Administrative rationalization: define uniform units and conversion rules so the state can plan, collect, pay, and adjudicate consistently across time and territory.