Lunar calendar average length of the synodic month is days. Thus it is convenient if months generally alternate between 29 and 30 days (sometimes termed respectively “"hollow"” and “"full"”). The distribution of "hollow" and "full" months can be determined using continued fractions, and examining successive approximations for the length of the month in terms of fractions of a day. In the list below, after the number of days listed in the numerator, an integer number of months as listed in the denominator have been completed: These fractions can be used to construct a lunar calendar, or in combination with a solar calendar
Kaula (month) Swanti. The first two days are dedicated to crows and dogs respectively. The 15th day is Lakshmi Puja when households worship the goddess of wealth in their private shrines. The day is also the last day of the lunar Nepal Era, and traditionally merchants closed their accounting books. Kaula (month) Kaulā (Nepal Bhasa: कौला) is the twelfth month in the Nepal Era calendar, the national lunar calendar of Nepal. The month coincides with Ashvin (अश्विन्) in the Hindu lunar calendar and October in the Gregorian calendar. Kaulā begins with the new moon and the full moon falls on the 15th