Brihat Jataka
अत्रार्पि होरापटदो द्विजेन्द्रा: सूर्यांशतुल्यां तिथिमुद्दिशन्ति ॥ रात्रिद्युसञ्ज्ञेषु विलोमजन्म भागैश्च वेला: क्रमशो विकल्प्या: ॥ २६-४ ॥
Here also those lords of the twice-borns skillful in the horoscope they declare tithi (lunar day) is equal to the degree of the Sun ॥ in a zodiac sign॥. Among the defined night and day ॥ zodiac signs॥, the birth in the opposite ॥ day and night, respectively॥. The time ॥ of birth॥ is to be calculated by the portions in degrees ॥ that have risen in the zodiac sign॥.
english translation
atrArpi horApaTado dvijendrA: sUryAMzatulyAM tithimuddizanti ॥ rAtridyusaJjJeSu vilomajanma bhAgaizca velA: kramazo vikalpyA: ॥ 26-4 ॥
hk transliteration by Sanscript