Matsya Purana — Solar–Lunar Motions
त्रिंशद्भागं च मेदिन्या मुहूर्तेन स गच्छति योजनानां सहस्रस्य इमां संख्यां निबोधत //
triṃśadbhāgaṃ ca medinyā muhūrtena sa gacchati yojanānāṃ sahasrasya imāṃ saṃkhyāṃ nibodhata //
In one muhūrta, it traverses a thirtieth part of the earth—understand this stated measure as a thousand yojanas.
This verse is not about pralaya; it gives a technical cosmographic computation—how far a referenced moving body travels in one muhūrta, expressed in yojanas.
Indirectly, it supports the Purāṇic ideal of learned governance and household life: rulers and householders are encouraged to know standard measures (time/distance) used for calendrics, ritual timing, and administrative reckoning.
The verse itself is metrical/astronomical, but such standardized units (yojana, muhūrta) underpin ritual scheduling and large-scale planning (e.g., pilgrimage routes, temple endowments, and measurement conventions referenced across Purāṇic traditions).