Eid Follows a Crescent, Amavasya Follows a Tithi

Eid is fixed, in living practice, by the sighting of a crescent, or by a moon-sighting authority. The civil date is announced. It is not a tithi in a Hindu panchang, and a blog should not pretend to publish next year’s Eid as if it were Vijayadashami. What can be said ahead of time is the method.

Amavasya is the dark lunar day, the Sun and Moon together from a panchang’s point of view. The crescent Eid waits for is the new Moon just becoming visible after that conjunction. The two systems often place their lunar months near each other, then drift, because one counts tithis at sunrise and the other counts sighted crescents. Nearness is not identity.

Courtesy is part of getting the sky right

A Jyotishi can calculate conjunctions. A Jyotishi does not own Eid. If a neighbour is fasting, the useful knowledge is that their month is lunar, that the day can shift with a sighting, and that your ekadashi fast is a different vow on a different count. Share the street. Do not merge the calendars to sound universal.

How tithis move is why Hindu dates drift.

Questions people keep asking

Is Eid an amavasya?

No. Eid follows a crescent. Amavasya is the dark tithi. They belong to different lunar rules.

Can a panchang announce Eid?

A panchang can show the conjunction. The announcement of Eid belongs to the moon-sighting practice of that community.