44. Though Tagu is nominally the first month in the year, it is sometimes the last. The Thagayit number is applied to the solar year, consequently every year except watat year has 11 ambiguous days, bearing identical month names and day numbers, at its beginning and at its end. The latter are distinguished by the word "hnaung" prefixed. Thus B. E. 1257 Tagu waning loth was April i8th, 1895, and B. E. 1257 Hnaung Tagu waning loth was April 6th, 1896. Again, 14th April 1898 from midnight to 1-51-36 P. M. was B. E. 1259 Hnaung Tagu waning 9th. The same day from 1-51-36 P.M. to midnight was B. E. 1260 Tagu waning 9th.
45. Besides the 12 signs of the zodiac, the ecliptic is also divided into 27 nekkats (Hind, nakshatra), representing the 27 days of the sidereal month. The Pali names of the nekkats are almost identical with the Sanskrit names of the nakshatras.
46. The actual length of the mean sidereal month is 27.321661 days. The fraction gave rise in India to three different systems of reckoning the amount of celestial longitude covered by each nakshatra. The following list of nekkats is taken from Thandeikta. Athawani commences at longitude 350°. The spaces in this list differ greatly from both the Indian systems of unequal spaces. The most modern system in India is that of equal spaces, 13° 20′ being assigned to each nekkat.
| No. | Burmese name. | Hindu name. | Extent. | Long. of last pt. |
| 1. | Athawani | Asvini | 18° | 8° |
| 2. | Barani | Bharani | 10 | 18 |
| 3. | Krattiga | Krittika | 16 | 34 |
| 4. | Rawhani | Rohini | 12 | 46 |
| 5. | Migathi | Mrigasiras | 14 | 60 |
| 6. | Adara | Ardra | 5 | 65 |
| 7. | Ponnapokshu | Punarvasu | 27 | 92 |
| 8. | Poksha | Pushya | 14 | 106 |
| 9. | Athaleiktha | Aslesha | 12 | 118 |
| 10. | Maga | Magha | 11 | 129 |
| 11. | Prokpa Palgonni | Purva Phalguni | 16 | 145 |
| 12. | Oktra Palgonni | Uttara Phalguni | 9 | 154 |
| 13. | Hathada | Hasta | 10 | 164 |
| 14. | Seiktra | Chitra | 15 | 179 |
| 15. | Thwati | Svati | 13 | 192 |
| 16. | Withaka | Visakha | 21 | 213 |
| 17. | Anurada | Anuradha | 11 | 224 |
| 18. | Zeta | Jyeshtha | 5 | 229 |
| 19. | Mulathan | Mula | 13 | 242 |
