सूर्य गोचर के समय जिस नक्षत्र में है, उससे चन्द्र्मा का नक्षत्र जब 4,9,6,10,13,20 वाँ पडे़ तब उस दिन रवियोग होता है.
A Ravi Yoga is formed when Moon is four nakshatra's away from Sun. This yoga is the destroyer of all inauspiciousness, a good day for successful action and intent. This occurs when Moon nakshatra is 4,6,9,10,13 and 20 nakshatras distant from the Sun nakshatra. Ravi Yoga is a specific time period in Hindu lunar month. It is a good time period for important ceremonies like house warming, bringing car home, closing of home deal, opening of shops, booking of cars etc. Ravi Yoga nullifies all the bad muhurtas. In February 2012 Ravi Yoga time period and dates are given below:
From 6:00 AM on February 1, 2012 to 11:10 AM on February 3, 2012.
From 1:54 PM on February 5, 2012 to 2:11 PM on February 6, 2012
From 11:53 PM on February 6, 2012 to 1:48 PM on February 7, 2012
From 4:43 AM on February 13, 2012 to 3:13 AM on February 14, 2012
From 5:21 AM on February 25, 2012 to 7:59 AM on February 26, 2012
From 10:56 AM on February 27, 2012 to 2:04 PM on February 28, 2012