Tithi 13jaya
Shukla Trayodashi
शुक्ल त्रयोदशी
Presiding deity: Shiva (Pradosh)
Tithi Mantra
ॐ नमः शिवाय
Om Namah Shivaya
Shukla Paksha (waxing)
Pradosh Vrat (twilight Shiva worship 1.5 hours pre-sunset to 1.5 hours post-sunset). Soma Pradosh (Monday) most powerful. Vaishakha Shukla Trayodashi = Vrishabha Pradosh. Dhanteras (Kartik Krishna Trayodashi, see KP13) but Shukla T13 is general Pradosh fast.
Krishna Paksha (waning)
N/A — see krishna-chaturdashi for Masik Shivaratri.
Best for
- + Shiva abhishekam at pradosh
- + Bilvapatra offering
- + Rudra path
- + Lighting deepa at twilight
- + Ayurvedic herb collection
Avoid for
- - Marriage (rikta-adjacent in some panchangs)
- - Travel south
Fasting tradition
Pradosh vrat — fast all day, break only after pradosh-kala puja; offer panchamrit-abhishek to Shiva linga + 108 bilvapatras.
Major festivals on this tithi
Pradosh Vrat (twice monthly), Soma Pradosh, Mahesh Navami, Vrishabha Pradosh