Karwa Chauth Puja Muhurat is the auspicious time for performing the puja ritual during Karwa Chauth. This muhurat is calculated based on the intersection of Pradosha Kaal (48 minutes after sunset), Chaturthi Tithi, and the time before Moonrise. Muhuratam.in calculates this scientifically precise timing based on your city's exact location (latitude and longitude), following traditional Panchang rules.