Soma Pradosham

Soma Pradosham is the Pradosha Vrata (Trayodashi twilight worship of Shiva) falling on a Monday — considered especially auspicious, particularly for relief from mental stress and for the wellbeing of children. When this occurrence is also the Gauna (secondary) Pradosham day — the rare case where Trayodashi spans two civil days ambiguously — it is shown as "Soma Pradosham (Gauna)". Generic "Pradosham" queries also surface these dates.