Guru Vakri (Jupiter Retrograde) is a period of 4 months in a year during which the Planet Jupiter becomes directional for four months and sets after after 4 months and a quarter. In 2014-2015, Guru Vakri begins on 8 December, 2014 and Jupiter becomes progressive on 8 April 2015.
Guru Vakri (Jupiter retrograde) – 8 December 2014 at Night 2.04 hrs
Guru Vakri Thyagam (Progressive Jupiter) – 8 April 2015 at Night 10.35 hrs
Guru (Brihaspati) is believed to be the most influential planet in Navagrahas. It symbolises honesty, justice, positive characters, happiness and auspiciousness. It influences the 2nd house, 5th house, 9th house, 10th house and 11th house. Jupiter is the Karaka of all the above houses.
Jupiter is auspicious planet for Dhanu Rashi (Sagittarius) and Meena Rashi (Pisces). And Guru is inauspicious planet for Kanya Rashi (Virgo) and Mithuna Rashi (Gemini).