Surya Siddhanta
भभोगो +अष्टशतीलिप्ताः खाश्विशैलास् तथा तिथेः । ग्रहलिप्ताभभोगाप्ता भानि भुक्त्या दिनादिकम् ॥
The Bha-bhoga (or the space of a Nakshatra or an Asterism) contains 800′ minutes, and the Bhoga of a tithi (or the space which the Moon describes from the Sun in tithi or lunar day) contains 720′ minutes. The place of a planet, reduced to minutes, divided by the Bhabhoga or 800′, gives the number of those Nakshatra or Asterisms (counted from As'winí which are passed by the planet: and the remainder is that portion of the present Nakshatra which is passed by the planet.) (This remainder divided) by the diurnal motion (of the planet) gives the quotient in the days, ghatikás, &c. which the planet has taken to pass that portion of the present Nakshatra.
english translation
bhabhogo +aSTazatIliptAH khAzvizailAs tathA titheH । grahaliptAbhabhogAptA bhAni bhuktyA dinAdikam ॥
hk transliteration by Sanscript