Chandra Sashti Vrat is observed on sixth day following Rakshabandhan (Rakhi Festival), Shukla Paksha Sashti in Bhadrapada Month in North Indian Hindi calendars.
In 2016, Chandra Sashti Vrat date is September 7. It is mainly observed in Rajasthan and some Rajasthani influential places of Gujarat.
Chandra Sashti Vrat is observed mainly by married women in the first year of their marriage. Unmarried girls also observe this vrat for ideal husband and happy married life.