Thanks to kirtu for this thread
....bimonthly sojong (Skt. poṣadha).....
Or also known as 'upavasatha' (Pali: Uposatha)...
I thought that there are more days of observances in between like the interval half moon days other than the new/full moon days (although these 2 are more commonly practiced) or does the Tibetan Buddhist Tradition practice only the 2?
A side Q:
So, the seniority of the monastics in the Mulasarvastivada School, of which the Tibetan Buddhist Vinaya is based on, is determined by the number of rains retreats (from Pāli: Vasso/Vassa, Skt: varṣaḥ) clocked in or by the age of ordination or both?