Indian Chronology (Solar, Lunar and Planetary): A Practical Guide to the Interpretation and Verification of Tithis, Nakshatras, Horoscopes and other Indian Time-records, B.C. 1 to A.D. 2000 c29.44

Now by Table VII (b) 270° = 202·92 + 71·02 = 273·94 days. And by Table VI (a) 2° = ·1641 day. 10' = ·0137 day. 31" = ·0007 day.