Observed on Kartika Shukla 6th.
Chhath Puja (Day 3: Sandhya Arghya) is one of the festivals observed in the Hindu calendar. A detailed account of its mythology, significance, and rituals is being prepared.
Computed for Apollo (America/New_York) using local sunrise, sunset and astronomical positions.
Daily tithi, nakshatra, sunrise, sunset and upcoming festivals — all computed for Apollo.