Lamp of the Determination of Lunar Days

With five ghatikas Ghatika: A traditional unit of time lasting 24 minutes; five ghatikas equal two hours., the tenth lunar day original: "Dashami" is considered "piercing." This specific overlap is recognized where fasting original: "upavasa" is involved. || 54 ||
Ghatikas: established 5, parts 9 with ghatikas

Regarding the tenth Dashami, even a very small overlap with the fifth referring to a division of the day is mentioned. || 55 || The decision regarding the eleventh Ekadashi and its overlap with the fifteenth the Full or New Moon is its own specific determination. The Eleventh is proclaimed to have this kind of special overlap. || 55 ||

Thus, even on a "three-day" occasion a complex calendar situation where a single lunar day touches three different calendar dates, the ritual time for action is not lost. In both cases, it is stated that the fast should be observed. || 56 || Whatever overlaps have been described for the lunar days regarding vows Vrata: A religious vow or observed practice, often involving fasting and prayer. and other rituals; indeed, in this way the day would be complete, though overlaps are frequent there. || 57 ||

For those duties prescribed for the daytime, the daytime is proclaimed [as the relevant period]. For those duties prescribed for the night, one should always arrange them according to the night. || 58 || For a duty prescribed for the full day and night Ahoratra: A complete 24-hour cycle from sunrise to sunrise., it is remembered as spanning the full day and night. Thus, having explained the rules of overlap in detail, the determination of the lunar days Tithi-nirnaya: The process of calculating the correct day for a ritual when the lunar calendar and solar day do not align perfectly. is now stated. || 59 ||

The wise know the lunar day to be of two kinds: Pure original: "Shuddha" and Pierced original: "Viddha". Regarding the Pure day, there is no doubt; but the Pierced day requires a formal decision to determine its suitability. || 60 ||