Upanayanam = Thread Ceremony

Muhurth is fixed in 2 steps shown as 2 rules tables below.

  1. Find the days suitable in a month.  Select the day. This is based on Month, Day, Nakshatra, Tithi, Yoga, and Karana. 
  2. Find the time of the event. This is based on the horoscope of that moment. What is rising ? What is setting or going to set ? etc.
Select Year and Month for finding suitable muhurth days. Year       =   Month    =                      
                                                                  [Not Jul 15 to Jan 15]

                  

Upanayana or thread ceremony.. This is the most important Sanskar , which marks the beginning of  the next stage of life – Youth. The word Upanayana means bringing near. The child is bought near to the Guru. This Sanskar is second birth for child – a spiritual birth.  This Sanskar is performed during 5th, 7th or 9th year of child. With Upanayana , the body comes in the DWIJA class, and gains the right to study the Vedas. 

Normally Upanayan  is not done Jul 15 to Jan 15.

No. Good Avoid
1 Rig Vedi - Purva, Purvashada, PBhadrapad, Hasth, Chitra, Svati, Ashlesh, Sravan & Mula, Ardra, Mrgasiras. Bharani, Kartika, Thiruvathira, Ayilyam, Magam, Pooram, Vishakam, Thrikketta, Mulam, Pooradam, Poororuttati
2 Yajur Vedi - Revati, Anuradha, Hastha, Punarvasu, Pushya, Mrgasiras, Citra, Utthara, Uttarashada, UBhadrapad and Rohini Saturday Tuesday
3 Sama Vedi - Sravan, Ardra, Hasth, Dhanishta, Pushya, Utthara, Utharashada, UBhadrapad and Ashvini 4,9,14, amavasya, S8 
1st half of K7, S1 and P15
2nd half of K3,K10 and S11
4 Atharva Vedi - Dhanishta, Punarvasu, Anuradha, Hastha, Mrgasiras and Revati, Asvini Krishna Paksh
5   Karkitakam,  Chingam, Kanni, Tulam, Vrichikam, Dhanu = period July 15 to Jan 15
6   Sun Rah or Mar in 9
7   Planet other than Ven in 8
8   Daytime from 5th Rasi
9   Nighttime
10   Boy is less than 4 years old
11   Boy is running 6th year
12   Boy is above 14 years age
13   Ulka = Eclipse day. Earthquake day. Meteor Shower day.Animal howling day.