Aani Masam is the third month in a traditional Tamil calendar. In 2013, Aani Month begins on June 15, 2013 and ends on July 16. The most important and auspicious day in the month is the Aani Uthiram (July 14, 2013).
Ekadasi dates in Aani Masam are on June 19 and July 3,
Shiva Pradosham dates are on June 21 and July 5.
Sashti Muruga Fasting is on July 14.
Aani Pournami or full moon day is on June 23
Aani Ammavasi is on July 7.
Pillayar Sankatahara Chaturthi is on June 26. (Ganesh Sankashti Chaturthi)
The next month in Tamil Calendar is the Aadi Month.