दिवसस्य हरत्यर्कः षष्टिभागमृतौ ततः ॥ कZ_०२.२०.६५अब् ॥
divasasya haraty arkaḥ ṣaṣṭi-bhāgam ṛtau tataḥ
在每一季中,太阳(arka)减去一天的六十分之一(即使昼长/时间随季节发生变化)。
To justify precise correction rules so state schedules (ritual dates, pay, tax deadlines, court sessions) do not drift over time.