Starting a Vrat (Fast) Muhurta
Beginning a religious fast or vrat — daily, weekly, or 16-monday-style.
Best day
Monday
Moon IS karaka of vrats — supreme day for any fast-start.
Day to avoid
Saturday
Saturn-day for Shani-vrat and Hanuman-vrat-as-Shani-remedy.
Primary karaka
moon
Secondary
jupiter
Sub-category
Spiritual
Search priority
Tier 3 of 4
Day-by-day verdict
Day-by-day verdict for Starting a Vrat (Fast)
Karaka: Moon (with Jupiter)
Sunday
Surya
Sun-day starting Surya-vrat or Aditya-vrat.
Monday
Chandra
Moon IS karaka of vrats — supreme day for any fast-start.
Tuesday
Mangal
Mars supports Hanuman-vrat and Mangal-vrat starts.
Wednesday
Budha
Mercury supports Ganapati-vrat and knowledge-aligned fasts.
Thursday
Guru / Brihaspati
Guru, secondary karaka, is supreme for Vishnu-vrat starts.
Friday
Shukra
Venus blesses Lakshmi-vrat and Santoshi-Maa starts.
Saturday
Shani
Saturn-day for Shani-vrat and Hanuman-vrat-as-Shani-remedy.
Detailed reasoning by day
Starting a Vrat (Fast) on Sundayरविवार
Ruled by Surya · Authority, leadership, soul-purpose, royal undertakings.
Sunday is the dedicated starting day for Surya-vrat, Aditya-Hridayam-paath-vrat, and Sankashti-related Sun-aligned vrats. Begin at sunrise with a single meal at noon (madhyahna-bhojana). Less ideal for non-Sun vrats; their dedicated days are preferred.
Starting a Vrat (Fast) on Mondayसोमवार
Ruled by Chandra · Mind, mother, emotion, water, comfort.
Chandra is the primary karaka here. Monday is the universally first-choice day for starting any vrat — Somavar-vrat (16-Mondays), Solah-Somavar, Maha-Mrityunjaya-vrat, Pradosh-vrat, or generic Iṣṭadevatā-vrats. Begin in Shukla-paksha Monday for compounded effect.
Starting a Vrat (Fast) on Tuesdayमंगलवार
Ruled by Mangal · Courage, conflict, blood, valour, brothers.
Mangalvara is the dedicated start-day for Hanuman-vrat, Mangal-vrat (for Manglik remedies), or Bajrang-baan paath-vrat. Begin at Brahma muhurta with Hanuman Chalisa recitation. Less ideal for non-Mars vrats.
Starting a Vrat (Fast) on Wednesdayबुधवार
Ruled by Budha · Intellect, communication, business, learning.
Budha-day vrat-start is dedicated to Ganapati-vrat, Saraswati-vrat, or Sankatahara-Chaturthi vrat. Especially auspicious for students starting study-discipline vrats before exams. Pair with Hasta or Pushya nakshatra.
Starting a Vrat (Fast) on Thursdayगुरुवार
Ruled by Guru / Brihaspati · Wisdom, dharma, expansion, blessing.
Brihaspati is the secondary karaka here. Thursday is the supreme starting day for Vishnu-vrats — Vaikuntha-Ekadashi-prep, Brihaspati-vrat (16 Thursdays), Sai-vrat, Datta-vrat. Pair with Pushya nakshatra for the deepest classical alignment.
Starting a Vrat (Fast) on Fridayशुक्रवार
Ruled by Shukra · Beauty, love, women, comfort, jewelry.
Shukra-day vrat-start is dedicated to Vaibhav-Lakshmi-vrat, Santoshi-Maa-vrat (16-Fridays), Mahalakshmi-vrat, or Lalita-Sahasranama paath-vrat. Especially auspicious in Magha or Anuradha nakshatra during Pradosh-kaal.
Starting a Vrat (Fast) on Saturdayशनिवार
Ruled by Shani · Discipline, restriction, austerity, karma.
Shanivara vrat-start is dedicated to Shani-vrat (specifically for Sade Sati or Shani-Mahadasha remedy) and Hanuman-vrat-as-Shani-pacification. Begin with sesame oil-deepa lighting at sunset Friday for the Saturday vrat. Less ideal for non-Saturn vrats.