Hijri Calendar Pro

A Comprehensive Tool for Precise Hijri Date Conversion and Lunar Tracking

For individuals requiring accurate conversion between Gregorian and Hijri calendars, the process often involves manual calculation or reliance on basic tools lacking scientific rigor. Hijri Calendar Pro addresses this by functioning as a dedicated computational engine for Islamic calendrical data, applying established astronomical criteria to ensure reliability. It extends beyond simple date conversion to serve as an analytical platform for moon and sun positioning, providing empirical data for religious observance, academic study, or personal interest.

Core Functionality and Astronomical Calculations

The application's primary operation is bidirectional date conversion across an extensive historical range from 4712 BCE to 2149 CE, which includes pre-Hijra epochs. These calculations are not based on simple algorithms but on the criteria of the Global Moon Sighting Conference, utilizing a fixed Earth-Moon elongation angle of 8 degrees. This methodological approach aims to standardize outputs according to a recognized scholarly framework. The software can utilize either network-based or precise GPS location data to tailor all subsequent astronomical information, including prayer time relevance, to the user's specific geographic coordinates.

Detailed Lunar and Solar Observational Data

Beyond the calendar, the app acts as a detailed lunar ephemeris. It provides exhaustive metrics for the moon, including times for moonrise, upper culmination, and moonset, alongside its equatorial and ecliptic coordinates. Supplementary data points such as lunar illumination percentage, lunation number, and altitude offer a technical overview of the moon's phase and position. A distinct feature is the real-time moon image generation and a visualization of the "Da Vinci Glow" (earthshine) on the moon's darkened portion. Furthermore, the system integrates detection algorithms for solar and lunar eclipses, delivering data on the timing and type, whether central or partial, of these events.

Interface Design and System Integration

Navigation within the calendar is facilitated through precise day and time adjustment settings, allowing for meticulous examination of the lunar cycle. Users can sequentially review phases including new moon, full moon, and crescent stages. The application offers direct system integration through customizable home screen widgets, which display current Hijri dates and moon phases for instant access without opening the app. To accommodate a wider user base, the interface includes full multilingual support for Turkish and Arabic languages.

• Astronomically-Verified Conversion: Performs Hijri-Gregorian date conversion using established 8-degree elongation criteria for consistent, location-aware results.
• Comprehensive Lunar Ephemeris: Delivers detailed data on moonrise, culmination, coordinates, illumination, and visualizes earthshine on the moon.
• Integrated Home Screen Widgets: Provides instant access to current Islamic dates and moon phase graphics directly from the device's home screen.

This application represents a consolidated resource for verified Islamic calendrical data and observational astronomy. Its adherence to a defined calculation criterion and provision of granular celestial metrics differentiate it from more basic calendar tools. For activities requiring precision—from determining religious event dates to studying lunar cycles—this platform aggregates necessary functionalities into a single, advertisement-free environment.

Download the mobile app now for exclusive, early access to its full suite of professional-grade features—this limited offer ensures ad-free usage for all initial users.

Internet required. IAP available.