Hayanaratna · by Balabhadra
Chapter 1 · Planets, Signs, Year Entry
ग्रहराशिस्वरूपवर्षप्रवेशाद्यानयनाधिकारः
भोग्याल्पकालात्स्वत्रिघ्नात्स्वोदयाप्तलवादियुक् ॥रविरिव भवेल्लग्नं सषड्भार्कान्निशातनुः ॥
The wanted time may be less than the Sun's remaining time. Then multiply that time by its own three. Divide by the sign's own rising time. Add the degrees and so on to the Sun. The lagna (rising sign) is then like that Sun. At night the lagna comes from the Sun plus six signs. (Our text is unclear here: 'its own three' gives no clear multiplier for this working.)
Simple meaning: Rising sign when the wanted time is shorter than the Sun's remaining time: add a small part to the Sun itself. At night, start from the Sun plus six signs.
अत्र जन्मदेशीयमेषादिलग्नमानैर्लग्नस्पष्टीकरणं कर्तव्यं न त्वन्यदेशोदयैरिति ॥
Rising times: use those of the birth place, not another place.
अथ धनर्णं लग्नानयने विशेषः ॥
Rising sign by plus and minus: from sunrise or sunset count forward, before them count back. Both ways give the same rising sign.
अथ दशमलग्नानयनम् ॥
Finding the 10th house: start from the Sun's time passed or to go in its sign, using equator rising times and the time from midday.