Lunar month circular, the speed of Earth's progression around the Sun varies during the year. Thus, the angular rate is faster nearer periapsis and slower near apoapsis. The same is so for the Moon's orbit around the Earth. Because of these variations in angular rate, the actual time between lunations may vary from about 29.18 to about 29.93 days. The long-term average duration is days (29 d 12 h 44 min 2.8016 s). The synodic month is used to calculate eclipse cycles. It is customary to specify positions of celestial bodies with respect to the vernal equinox. Because of Earth's precession of
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