Khandakhadyaka: An Astronomical Treatise

[Calculation continues:] ...result is the day-count for the mean position. From that result, subtract [from the] mean position; the remainder is to be divided by 703. These are the avamaratras lost lunar days. The remainder is the fractional part. One should add four ghatikas units of time, approx. 24 mins to it. As it will say, "The remainders of intercalary months and lost lunar days are 17 ghatikas..." Place that aside. Having subtracted the lost lunar days from the day-count, the savana civil day count is obtained.

*If one wants to know how much time has passed for an intercalary month or will pass for a lost lunar day, [one calculates accordingly]. [Technical instructions follow for calculating planetary days and remainders.]

Example: The Shaka year is 786. Subtract 587. The remainder is 188. This is multiplied by 12, resulting in 2256. Starting from Chaitra, one month has passed. Adding that [to 2256] results in 2258. [Continues with calculation steps for planetary positions].

* Ibid.