Shat-trimshat-sama

42-43. Count from Shravan to the Janm Nakshatr and divide the number by 8. The remainder 1 etc. will indicate the Dasha Lords, whose order will be, as follows: Candr, Surya, Guru, Mangal, Budh, Sani, Sukr and Rahu. Their Dashas will be 1, 2, 3, 4, 5, 6, 7 and 8 years. If the birth is during the day and Lagn is in the Hora of Surya and, if the birth is at night and Lagn is in the Hora of Candr, adoption of this system would be preferable.

Kaal

44-49. 5 Ghatikas before the sight of the semi-disk of the setting Surya and 5 Ghatikas after that and 5 Ghatikas before and after the rising of Surya, that is 10 Ghatikas in the evening and 10 Ghatikas in the morning, respectively. The total period of both these Sandhyas (twilight) is said to be 20 Ghatikas. The 20 Ghatikas of the night have been given the name Purna and the 20 Ghatikas of the day have been given the name Mugdha. The Sandhya at the time of sunrise is called Khanda and the Sandhya at the time of sunset is said to be Sudh. Both of these Sandhyas are of 10 Ghatikas each. If the birth is in Purna, or Mugdha, its past Ghatikas should be multiplied by 2 and the product should be divided by 15. The figure so arrived at should be converted into years, months etc. By multiplying it by the serial number of Surya and other Grahas in their normal order, we will get the Kaal Dasha of these Grahas. If the birth is during Sandhya, then its past Ghatikas should be multiplied by 4 and the product divided by 15. The figure so arrived at in terms of years, months etc. should be multiplied by the serial number of Surya and the other Grahas to get the Kaal Dasha of all the nine Grahas.