On Sankashti Chaturthi (Sankatahara Chaturthi), the moon rule is the exact opposite of Ganesh Chaturthi (Bhadrapada Shukla Chaturthi): here you must see the moon. The fast is broken only after moonrise and after offering arghya to the Moon — breaking it before sighting the moon is considered incomplete.

Why the moon must be seen

Sankashti Chaturthi falls on Krishna Paksha Chaturthi (the waning fortnight). Tradition links the moon-sighting to the resolution of the earlier Chandra–Ganesha curse story; sighting the moon and offering arghya completes the vrat and is believed to remove obstacles (sankata).

How the fast works

  1. Begin the fast at sunrise on Krishna Paksha Chaturthi.
  2. Observe it through the day (fruit, milk and water usually allowed; grains avoided).
  3. Perform Ganesha puja in the evening.
  4. Wait for local moonrise.
  5. Sight the moon, offer arghya (water, milk, rice, white flowers), and chant "Om Somaya Namah" or "Om Chandraya Namah".
  6. Only then break the fast with Ganesha’s prasad — modak or ladoo.

Practical points for NRIs

  • Moonrise time varies by city — check it for your exact location (New York, London, Toronto, Sydney, Dubai, etc.).
  • If the sky is cloudy and the moon is not visible, most traditions allow offering arghya facing the moon’s direction at the published moonrise time, then breaking the fast.
  • The next Sankashti Chaturthi after Ganesh Chaturthi 2026 falls in late September 2026 (Angarki Sankashti, as it lands on a Tuesday in many panchangs) — confirm the date and local moonrise with your panchang.

Sankashti vs Ganesh Chaturthi: the moon

  • Moon rule — Ganesh Chaturthi (Bhadrapada Shukla): do NOT see the moon. Sankashti (Krishna Paksha): you MUST see the moon.
  • Reason — Ganesh Chaturthi: avoid mithya dosha (false accusation). Sankashti: complete the vrat and remove obstacles.
  • Fast — Ganesh Chaturthi: not linked to the moon. Sankashti: broken only after moon darshan.

In short: on Sankashti Chaturthi the moon is auspicious and necessary; on the special Bhadrapada Ganesh Chaturthi the moon is deliberately avoided.

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Explore the Ganesh Chaturthi 2026 Complete Guide

This page is part of Hindutone’s Ganesh Chaturthi 2026 cluster:

  • The moon on Ganesh Chaturthi: why it must not be seen, and the remedy mantra
  • Vinayaka Vrata Vidhanam: the complete Ganesh Chaturthi puja