i convert Georgian calendar to Persian calendar by this code:
PersianCalendar t = new PersianCalendar();
date = t.GetYear(DateTime.Now).ToString("0000") + "/" + t.GetMonth(DateTime.Now).ToString("00") + "/" + t.GetDayOfMonth(DateTime.Now).ToString("00");
its work fine in application but when run app in windows 10 and location in Persian this code not work fro example: when system date time this 2019/07/27 return 1398/05/05 but when system date time is 1398/05/05 return 2019/07/27 i want always return 1398/05/05 how fix it?