What is a sankranti?
For this calendar, a sankranti is the moment the modeled Sun’s nirayana ecliptic longitude reaches the next multiple of 30°. Mesha begins at 0° and Makara at 270° in the selected sidereal zodiac. The Positional Astronomy Centre’s Rashtriya Panchang overview lists Sun transits into nirayana rashis among its calendar data.
The same ingress has one UTC instant but different local clock dates. Festival observance and a traditional punya kala can depend on local sunrise and tradition-specific rules. They are not calculated here. Read the method and calendar distinctions →
