Hijri-Gregorian Calendar 5.0.2

This application presents an extensive array of functionalities accommodating both Hijri and Gregorian calendars. Users can benefit from the following features:

• Dual Calendar Display: The app exhibits Both Hijri and Gregorian dates in parallel, providing the current time and date prominently at the top.
• Date Converter: Instantly convert dates between the Hijri and Gregorian formats.
• Age Calculator: Calculate your age in days, weeks, months, and years according to either calendar system.
• Date Difference: Determine the time differential between any two dates across both calendars.

In addition to these core features, the app includes:

• Prayer Times: Receive accurate prayer times tailored to your location, madhab, and chosen calculation method.
• Qibla Direction: A Qibla compass aids in locating the correct direction (available on compatible devices).

The latest significant update introduces:

• Event Management: Users can now add, edit, and manage events such as birthdays, religious or national holidays, as well as recurring events.
• Custom Reminders: Ensure that important dates are never overlooked with customizable alerts.
• Enhanced Notifications: Stay updated with notifications personalized for both Hijri and Gregorian events.

Date Calculation Methods:

The app employs two distinct methodologies for Hijri date calculations:

1. Umm al-Qura Calendar: This official Saudi Arabian calendar covers dates from 1/1/1356 (14 March 1937) to 29/12/1500 (15 November 2077), providing exceptionally accurate Hijri dates within this range.
2. Custom Hijri Calculation: For dates beyond the Umm al-Qura range, it assumes a Hijri year made up of 12 lunar months with the following day counts:
   • Muharram: 30 days
   • Safar: 29 days
   • Rabi' al-Awwal: 30 days
   • Rabi' al-Thani: 29 days
   • Jumada al-Awwal: 30 days
   • Jumada al-Thani: 29 days
   • Rajab: 30 days
   • Sha'ban: 29 days
   • Ramadan: 30 days
   • Shawwal: 29 days
   • Dhu al-Qi'dah: 30 days
   • Dhu al-Hijjah: 29 days (30 days in leap years)
   In this approach, leap years occur 11 times every 30 years. The commencement of the Hijri calendar is marked as Friday, 16 July 622 CE, allowing for accuracy within a two-day margin due to potential regional discrepancies in moon sighting.

The calculation of Gregorian dates follows two systems:

1. Julian Calendar: Employed for dates between January 1, 1 CE and October 4, 1582, this system designates every fourth year as a leap year.
2. Gregorian Calendar: From October 15, 1582 onwards, it corrects Julian drift by skipping ten days. The leap year rules are similar to Julian but include an additional stipulation: Years divisible by 100 are not leap years unless also divisible by 400.

Accuracy:

The application utilizes sophisticated algorithms to provide precise conversions; however, discrepancies of up to two days may occur for Hijri dates due to regional variations in moon sighting practices.