CHAPTER III.
General Description of the Calendar.
34. According to the Surya Siddhanta a maha-yug of
| 4,320,000 | years contains |
| 1,577,917,828 | days. |
| 1,603,000,080 | didi. |
| 25,082,252 | kaya. |
| 51,840,000 | solar months. |
| 53,433.336 | lunar months. |
| 1,593,336 | adimath. |
The greatest common measure of these numbers is 4. Dividing by 4, we get
| in 1,080,000 | years. |
| 394,479,457 | days. |
| 400,750,020 | didi. |
| 6,270,563 | kaya. |
| 12,960,000 | solar months. |
| 13,358,334 | lunar months. |
| 398,334 | adimath. |
35. The length of a mean year, deduced from the above figures, is 365.2687564814 days
| = 365 yet | 15 nayi | 31 bizana | 31 kaya | 24 anukaya. |
| = 365 days | 6 hours | 12 minutes | 36.56 seconds | |
The original Surya Siddhanta neglected the fraction of a day beyond five decimal points, or in other words omitted 1 kaya 24 anukaya = .36 second.
36. The year as thus defined is about 1 minute 12 seconds less than the mean anomalistic year as found by modern science, 3 minutes 27 seconds greater than the mean sidereal year, and nearly 24 minutes greater than the mean tropical year.
37. The Burmese zodiac is divided, as in Europe, into 12 signs ("rathi") each rathi into 30 degrees ("intha," Hindu "amsa"), each degree into 60
