Both Gregorian and Hijri dates are shown on the calendar in this app. It complies with Umm Alqura for recent years and is entirely accurate. It displays the Gregorian and Hijri calendar in month view. Additionally, it offers conversion between Gregorian and Hijri, as well as the opposite. The widget shows the current date in both Gregorian and Hijri time. The dates can be altered by 3 days, while the length of the month can be changed to 30 or 29 days.  You can select the beginning of the week for the calendar with this app as well. Furthermore, Arabic and English are supported.