Guru Peyarchi is associated with horoscope and astrology especially in Tamil Nadu and is the transition of planet Guru or Jupiter. In 2013, Guru Peyarachi date is May 28. Time is 10:28 PM. Guru or Jupiter will move to Mithuna Rashi on this day and will remain there for next 12 months.
Guru, or Jupiter, is considered a highly favorable graha or planet in Hindu astrology and it is believed to bring luck and prosperity.
Those people with weak position of Jupiter in their horoscope might face some hard times.
The Rashis that will be affected due to the transition are Mithuna, Karka, Vrischika, Makara, Meena and Mesha.
This transition is based on the movement of the moon.