Good and auspicious time to perform Ganesh Chaturthi Puja is when Chaturthi Tithi and also when Swati Nakshatra is present. In 2017 is before 8:24 AM on August 25, 2017. This is considered the ideal time to install Ganesha. The ideal time are given below:
The puja should be completed before 8:24 AM on August 25, 2017. After this there is Vishti or Bhadra on the day.