Tithi
In vedic timekeeping, a tithi (also spelled thithi) is a lunar day, or the time it takes for the longitudinal angle between the moon and the sun to increase by 12°. Tithis begin at varying times of day and vary in duration from approximately 19 to approximately 26 hours.
There are 30 tithis in each lunar month, named as follows:
| | Krsna paksa
(dark fortnight) | Gaura paksa
(bright fortnight)
|
| 1 | Pratipat | Pratipat
|
| 2 | Dvitiya | Dvitiya
|
| 3 | Trtiya | Trtiya
|
| 4 | Caturthi | Caturthi
|
| 5 | Pancami | Pancami
|
| 6 | Sasti | Sasti
|
| 7 | Saptami | Saptami
|
| 8 | Astami | Astami
|
| 9 | Navami | Navami
|
| 10 | Dasami | Dasami
|
| 11 | Ekadasi | Ekadasi
|
| 12 | Dvadasi | Dvadasi
|
| 13 | Trayodasi | Trayodasi
|
| 14 | Caturdasi | Caturdasi
|
| 15 | Amavasya
(new moon) | Purnima
(full moon)
|
Ekadasi, the eleventh day of each lunar fortnight, has special religious significance in Hinduism and Jainism -- usually observed by fasting.
