Namaskaar Vivekji,
Let me add some info regarding this Yamagantha Rahu kaal and gulika kaalam.
Yama Kantam : There are 90 minutes ( One and half hours ) devoted to this and the connection here is to Kethu , the 9th of the Nava graham with inauspicous connotions again like Raahu . Yama Kantam on Monday is between 10.30 to 12.00 Noon . On Sunday , it is between 12.00 Noon to 1.30 PM .
GuLikan is devoted to Bhagavathi , whose worship is prominent in KeraLa. There are day GuLikans and Night GuLikans . It is also a time period of
90 minutes , which vary from day to day . For Monday , the Pahal(Day) GuLikan is between 1.30 to 3.00 PM and the night GuLikan is between 7.30 PM to 9 PM .Various Theyyam uthsavams at KeraLa Bhagavathy temples are elaborate affairs with colorful masks of Bhagavathy , a goddess of many moods .
Raahu Kaalam Calculation
Week day Example 1:
Sunrise 6:00 a.m.
Sunset 6:00 p.m.
1/8 of Day = 90 minutes
Example 2:
Sunrise 5:58 a.m.
Sunset 8:14 p.m.
1/8 of Day = 107 minutes
Example 3:
Sunrise 6:36 a.m.
Sunset 6:10 p.m.
1/8 of Day = 87 minutes
Sunday 4:30 p.m. to 6:00 p.m. 6:27 p.m. to 8:14 p.m. 4:43 p.m. to 6:10 p.m.
Monday 7:30 a.m. to 9:00 a.m. 7:45 a.m. to 9:32 a.m. 8:02 a.m. to 9:30 a.m.
Tuesday 3:00 p.m. to 4:30 p.m. 4:40 to 6:27 p.m. 3:16 p.m. to 4:44 p.m.
Wednesda 12 noon to 1:30 p.m. 1:06 p.m. to 2:53 p.m. 12:23 p.m. to 1:50 p.m.
Thursday 1:30 p.m. to 3:00 p.m. 2:53 p.m. to 4:40 p.m. 1:49 p.m. to 3:17 p.m.
Friday 10:30 a.m. to 12 noon 11:19 a.m. to 1:06 p.m. 10:56 p.m. to 12:23 p.m.
Saturday 9:00 a.m. to 10:30 a.m. 9:32 a.m. to 11:19 a.m. 9:29 a.m. to 10:57 a.m.
Yamagandam
Like Rahukalam the following periods known as Yamagandam during which it is considered to be inauspicious to start any important work.
Like Rahukalam the following periods known as Yamagandam during which it is considered to be inauspicious to start any important work.
Monday 10.00 Am to 12.00 PM
Tuesday 09-00 AM to 10.30 Am
Wednesday 7.30 Am to 9.00 AM
Thursday 6.00 AM to 7.30 PM
Friday 3.00 Pm to 4.30 PM
Saturday 1.30 PM to 3.00 PM
Sunday 12.00 PM to 1. 30 PM