Hayanaratna · by Balabhadra
Chapter 7 · Finding the Dashas
दशानयनाधिकाराध्यायः
एवं दिनप्रवेशलग्ननिरीक्षकाश्चंद्रगुरुशुक्रशनिभौमास्तेषां दृष्टिकलादिकाः चं४५ बृ ३० शु२० श१५ मं१० दिनप्रवेशयोरन्तरालघटिकाः ६०कल्पिताः स्वस्वदृष्ट्या गुणितादृष्ट्यैक्येन १२० भक्तालब्धादशाघटिकाः चं२२।३०बृ१५ शु१०श ७ मं३०
Now the day entry. The planets looking at its lagna (rising sign) are the Moon, Jupiter, Venus, Saturn and Mars. Their looks, in minutes and so on, are: Moon 45, Jupiter 30, Venus 20, Saturn 15, Mars 10. The time between two day entries is taken as 60 ghatikas (24-minute units). Multiply it by each look. Divide by the total of the looks, 120. The dasha (planet period) ghatikas are: Moon 22;30, Jupiter 15, Venus 10, Saturn 7, Mars 30. (Our text is unclear here: the Saturn and Mars figures do not match the rule.)
Simple meaning: Tasira periods, day example: 60 ghatikas are shared by the looks of the Moon, Jupiter, Venus, Saturn and Mars.
अथ भावतसीरदशा तत्रैव ॥
House periods: the degrees between one house and the next give that house's days.
लग्नादीनामथैतेषां सौरसावनतोक्तवत्॥
House periods: turn their solar days into solar-civil days. This is called the house order.
अत्र प्रकारांतरंतत्रैवोक्तम्।
House periods, another way: the degrees between houses, times 300, divided by the sign's rising time.