28 Shawwal 1447 AH · Fri, Apr 17, 2026
Dhul Qi'dah 1447 AH
New Moon (Conjunction): 2026-04-17 11:51:48 UTC
Sunset
17:37
Moonset
17:36
Dhul Qi'dah 1447 AH
Sun, Apr 19, 2026
Dhul Hijjah 1447 AH
Tue, May 19, 2026
Muharram 1448 AH
Wed, Jun 17, 2026
Safar 1448 AH
Thu, Jul 16, 2026
Rabi al-Awwal 1448 AH
Fri, Aug 14, 2026
Rabi al-Thani 1448 AH
Sun, Sep 13, 2026
The Americas span from northern Mexico to southern Argentina, creating vastly different crescent moon sighting conditions. Equatorial cities like Cali and Barranquilla often enjoy favorable year-round visibility, while southern cities like Buenos Aires and Santiago experience more seasonal variation.
Growing Muslim communities across Latin America and the Caribbean rely on accurate Hilal predictions for determining Islamic month start dates. Our system provides precise calculations for each city, accounting for local sunset and moonset conditions across multiple time zones.
Our system calculates five key astronomical parameters at sunset: moonset lag, moon age, moon altitude, sun-moon elongation, and illumination percentage. These are fed into a machine learning model trained on over 2,000 historical crescent sighting observations to produce a confidence score from 0% to 100%.
Moonset Lag
≥ 45 min
Moon Age
≥ 21 hrs
Altitude
≥ 8°
Elongation
≥ 10°
Illumination
≥ 0.9%
Ramadan 2026
The holy month of fasting, prayer, and reflection observed by Muslims worldwide.
Eid al-Fitr 2026
The Festival of Breaking the Fast, celebrating the end of Ramadan.
Eid al-Adha 2026
The Festival of Sacrifice, the holiest of the two Islamic holidays, marking the culmination of Hajj.
Islamic New Year 2026
The first day of Muharram, marking the beginning of a new Islamic (Hijri) year.
Event dates for Rio de Janeiro are based on local crescent moon visibility and may differ from other regions.