Sankatahara Chaturthi which is celebrated on the fourth day of Krishna Paksha of the lunar month as per the Hindu calendar. On this day devotees worship Lord Ganesha and seek his blessings to avert bad times. 

The word 'Sankatahara' means to deliver us from difficult times in Sanskrit while chaturthi means fourth day of the month. If Sankatahara Chaturthi falls on a Tuesday it is called Angaraki Sankatahara Chaturthi.  

The Sankatahara Chaturthi is an auspicious day dedicated to Lord Ganesha. It is celebrated on every fourth day of the full moon or Krishna Paksha according to the Hindu calendar. Sankatahara Chaturthi is a very famous fast observed by most women for the welfare of their families. Sankatahara means deliverance from the troubled times.

Thus, observing this vrat is believed to reduce all the problems in a person's life because Lord Ganesha is the remover of all obstacles and problems. People observe strict fast on the day of Sankatahara Chaturthi and break the fast only at night after viewing the moon.