Understanding the Moon Sighting Process for Ramadan

Feb 16, 2026

63 min

Feb 16, 2026 07:30

Moon sighting practice explained: How Muslims determine the start of Ramadan

## Traditional Moon Sighting

The practice of moon sighting, or "Ru’yat Al Hilal," is crucial in determining the start of Ramadan and other Islamic months. This involves observing the crescent moon on the 29th day of the current lunar month. If the crescent is visible, the new month begins the next day; if not, the month extends to 30 days.

## Methods and Tools

Traditionally, the crescent is observed with the naked eye. However, modern tools like telescopes and binoculars are increasingly used, especially in poor visibility conditions. Official moon-sighting committees in countries like the UAE and Saudi Arabia verify sightings before announcing Ramadan's start.

## Role of Astronomy

Astronomical calculations now assist in determining the possibility of sighting the moon. These calculations can predict whether the moon will be visible in a specific location. If the moon sets before the sun, claims of sighting are often dismissed.

## Regional Variations

Different regions may start Ramadan on different days due to variations in moon visibility. This has led to discussions among scholars about whether to follow a global or local announcement for the start of Ramadan.

## Conclusion

Moon sighting is a blend of religious tradition, scientific input, and official verification, marking the beginning of Ramadan in the Islamic calendar.

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