Generally if we see the average the sunrises can be taken as 6 AM and sets at 6
Rahu kaal will be as follow for the weekdays.
- Monday 7:30 AM to 9 AM
- Tuesday at 3 PM to 4:30 PM
- Wednesday 12 PM to 1:30 PM
- Thursday 1:30 PM to 3 PM
- Friday 10:30 AM to 12 noon
- Saturday 9 AM to 10:30 AM
- Sunday 4:30 PM to 6 PM
But as a sunrise and sunset time changes during the year the Dragonhead /
rahukaal time also changes.
In Hindu Vigyan, Rahu Kaal is one of the 8 segments of the day and
considered inauspicious period in Indian astrology due to its association with
malefic, Rahu. The segments are calculated by taking the total time between
sunrise and sunset, at a given place, and then dividing this time duration by 8.
Astronomically in the Hindu Panchang Panchangas, the ever varying planetary
configurations mean that the auspicious hours during each day will not
always fall at the same moment of time. Rahu kaal (Raahukaala),
Yamagandakaala (Yama Ghantam) andVishaghati are the time periods which
are especially considered inauspicious or unlucky (Ashubh).
The planets according to Indian astronomers are
the Sun, Moon, Mars, Mercury, Venus, Jupiter, Saturn, Rahu and Ketu.
Rahukaal (Raahukaala) and Gulikakaal (Gulikakaala) are calculated based on
these planets. Even though Rahu and Ketu are not physical bodies, they are
sensitive points on the intersection of the ecliptic (the apparent path of
motion of the Sun) by the Moon's orbit. Rahu is the northern point and Ketu is
the southern point. Ancient astronomers felt that the mighty Rahu and Ketu
have the strength to obscure the sun, thus causing a solar eclipse. Hence it is
considered inauspicious to begin any undertaking during this "Rahukaal".
Every day this Rahukaal lasts for around 90 minutes, but the duration differs
according to the length of the time between sunrise to sunset.
To calculate Rahukaal, the time between the sunrise and sunset is divided into
8 units or time-groups, which time-group will have the Rahukaal depends on
For each weekday, Rahukaal falls as under:
- Sunday - 8th Muhurt (Unit)
- Monday - 2nd Muhurt
- Tuesday - 7th Muhurt
- Wednesday - 5th Muhurt
- Thursday - 6th Muhurt
- Friday - 4th Muhurt
- Saturday - 3rd Muhurt