Karwa Chauth is observed on Wednesday, October 28 in parts of North America and Thursday, October 29 in India with prayers, fasting, and family traditions.
In New Delhi, the Chaturthi tithi runs from 1:06 AM to 10:09 PM on October 29, with the evening puja muhurat scheduled from 5:38 PM to 6:56 PM.
Experts advise breaking the fast after sighting the moon with water and a light meal, while ensuring individuals with medical conditions consult doctors before fasting.