most imp days : when SUN transits through ARUDRA star\'s 1st quarter(paada) , its called earth\'s mensus period.
its imp. to worship lord siva and chant his panchakshari mantra om namassivaaya during those 3-4 days, which usually come in 2nd half of june every yr.
** also the day with arudra star in december is holy
i think sun entered into arudra constellation 1st quarter today and 9 days from today are earth\'s mensus period