Skanda Sashti is usually observed on the Shukla Paksha Sashti tithi of every month. The devotees offer prayer to Lord Skanda or Muruganfrom Top Lifestyle News- News18.com https://www.news18.com/news/lifestyle/skanda-sashti-history-significance-and-rituals-of-the-auspicious-day-3549662.html