internal static string DayOfWeek(PersianDate date)
{
if (!date.IsNull)
{
var dt = ToGregorianDateTime(date);
return(DayOfWeek(dt));
}
return(string.Empty);
}
/// <summary>
/// Converts a Persian Date of type <c>String</c> to Gregorian Date of type <c>String</c>.
/// </summary>
/// <param name="date"></param>
/// <returns>Gregorian DateTime representation in string format of evaluated Jalali Date.</returns>
public static string ToGregorianDate(PersianDate date)
{
var jyear = date.Year;
var jmonth = date.Month;
var jday = date.Day;
//Continue
int i;
var totalDays = JalaliDays(jyear, jmonth, jday);
totalDays = totalDays + GYearOff;
var gyear = (int)(totalDays / (Solar - 0.25 / 33));
var Div4 = gyear / 4;
var Div100 = gyear / 100;
var Div400 = gyear / 400;
var gdays = totalDays - (365 * gyear) - (Div4 - Div100 + Div400);
gyear = gyear + 1;
if (gdays == 0)
{
gyear--;
gdays = GLeap(gyear) == 1 ? 366 : 365;
}
else
{
if (gdays == 366 && GLeap(gyear) != 1)
{
gdays = 1;
gyear++;
}
}
var leap = GLeap(gyear);
for (i = 0; i <= 12; i++)
{
if (gdays <= GDayTable[leap, i])
{
break;
}
gdays = gdays - GDayTable[leap, i];
}
var iGMonth = i + 1;
var iGDay = gdays;
return(Util.toDouble(iGMonth) + "/" + Util.toDouble(iGDay) + "/" + gyear + " " + Util.toDouble(date.Hour) + ":" + Util.toDouble(date.Minute) + ":" + Util.toDouble(date.Second));
}
public static DateTime ToGregorianDateTime(PersianDate date)
{
return(DateTime.Parse(ToGregorianDate(date), CultureHelper.NeutralCulture));
}
/// <summary>
/// Converts a Persian Date of type <c>String</c> to Gregorian Date of type <c>DateTime</c> class.
/// </summary>
/// <param name="date">Date to evaluate</param>
/// <returns>Gregorian DateTime representation of evaluated Jalali Date.</returns>
public static DateTime ToGregorianDateTime(string date)
{
var pd = new PersianDate(date);
return(DateTime.Parse(ToGregorianDate(pd), CultureHelper.NeutralCulture));
}
