Sankata Hara Chaturthi or Ganesha Sankashti Chaturthi is observed on the Chaturthi or Chavithi, the fourth day of Krishna Paksha during every Hindu month. In January 2012, Sankashti Chaturthi date is 12 January 2012. This day corresponds with the Krishna Chaturthi in Magh month as per North Indian calendars while the Krishna Chaturthi in Pousha Month as per Telugu, Marathi, Gujarati and Kannada Calendars.
Chandrodaya or Moonrise time on 12 January 2012 is 9.16 PM in Indian Standard Time.
The Magha Shukla Chaturthi is celebrated as Ganesh Jayanti or Til Kund Chaturthi in Maharashtra and Konkan regions. Marathi people believe that Lord Ganesh was born on this day hence consider very auspicious to worship Ganesha. In Andhra Pradesh, Ganesh Jayanthi is observed as Putra Ganapati Vratam.
Here are the Sankashti January 2012 Moonrise timings in various cities like Mumbai, Delhi, Jaipur, Lucknow, Allahabad, Pune, Nashik, Nagpur, Bangalore, etc.