Difference between this library and Um Alqura

[dalwadani]

Hello everyone, Thanks for a great project. I tried to use this library and it works most of the time but I faced some issues with the following dates: 1381,7,1 1980, 3, 31 1956, 12, 30 I get the wrong date for them compared to Um Alqura website. The converted date is off by one day.

[AbdallahLabib95]

I found same problem when i choose 27/3/2021 It match between 26 and 27/3/2021 by one day