Wrong leap year detection

[MikkiMouse]

Hi, 1404 year is leap year in Jalali calendar, but library does not define it that way.

JalaliCalendar(1404, 1, 1).isLeap return false but it's not true

Any date in 1404 year is being converted to the Gregorian calendar incorrectly.

Example:

JalaliCalendar(1404, 1, 1).toGregorian() == 21.03.2025 - incorrect
1.1.1404 in Jalali it is 20.03.2025 in Gregorian

It would be cool if this bug is being fixed. Thanks

[razeghi71]

Hi @MikkiMouse,

1404 is not a leap year, and the converted date is correct: