Hayanaratna · by Balabhadra
Chapter 1 · Planets, Signs, Year Entry
ग्रहराशिस्वरूपवर्षप्रवेशाद्यानयनाधिकारः
जन्मवारघटिकापलयुक्ताः षष्ट्युपर्य्युपरिगंदिवसाढ्यम् ॥सप्तशेषकमिदं दिनपूर्वा स्वागता भवति हायनवेला ॥
Add the birth weekday, ghatika (24-minute unit) and pala (24-second unit). Carry every sixty up to the next place, up into the days. Divide by seven and keep the remainder. Read from the days down, this is the time the year comes in.
Simple meaning: Year entry time: add the birth weekday and time, carry the sixties, divide by 7. The remainder gives the weekday and time.
अत्रैव सुगमोपाय उक्तो दैवज्ञचक्रचूडामणिभिरस्मद्गुरुज्येष्ठभ्रातृभिः श्रीमन्नीलकण्ठदैवज्ञैः ॥
Same verse as Tajika Nilakanthi 1.16; see its meaning there.
प्रकारान्तरमुक्तं ग्रहज्ञाभरणे ॥
Another way: years gone in three places, plus a quarter, halved, plus a half; add the birth weekday and time.
एवं वर्षध्रुवकवशात्ताजिककर्तृभिरनेकप्रकाराअभिहितास्तेप्रयोजनाभावाद्ग्रंथबाहुल्यभयाच्च न लिख्यंते॥
Other methods: many exist, but they are left out as not needed.