In Muhurta Astrology there are many auspicious and inauspicious yoga.These yoga are combinations of Nakshtra (Moon’s Constellation) ,Tithi ( lunar day ) and Vaar (week day).
A well Known Auspicious Yoga called Sarvartha Siddhi Yoga . It is combination of nakshtra and vaar.As the name of yoga says itself all works done during this yoga will give good and desired results and
Sarvartha Siddhi Yoga dates in July 2013
July 02, 2013 (Tuesday),July 03, 2013 (Wednesday),July 14, 2013 (Sunday),July 18, 2013 (Thursday),July 19, 2013 (Friday),July 21, 2013 (Sunday),July 28, 2013 (Sunday),July 30, 2013 (Tuesday),July 31, 2013 (Wednesday)
For exact time when the above yoga starts and ends please see local panchang.