Ekadashi, Purnima, Amavasya, Pradosh, Sankashti Chaturthi, Masik Shivratri and Masik Durgashtami: the next date of each, its tithi’s times and how it is kept.
For New Delhi, in IST. A tithi begins and ends at the same moment everywhere; the day a vrat falls on, and its hours, are New Delhi’s and can differ by a day abroad.
Two Ekadashis, two Pradosh vrats, Purnima and Amavasya, Sankashti Chaturthi, Masik Shivratri and Masik Durgashtami. Each is a tithi of the lunar month, so its date moves through the solar calendar.
A tithi begins and ends at a real minute, not at midnight, and each vrat is kept by its own moment: Ekadashi by the sunrise, Pradosh by the evening, Sankashti by moonrise, Shivratri by the middle of the night. So two neighbouring days can each hold part of the tithi, and the rule picks one.
The North Indian Purnimanta calendar for New Delhi, worked out from the planets’ positions with the Lahiri ayanamsa, and checked against the standard panchangs.
Make your free kundli, or ask any of 24 astrologers which graha a vrat would strengthen for you. You pay by the minute.


