Hijri日历早了1天。

Question

如何修复提早1天的Hijri日历？

今天，我的时间= 2013年7月23日星期二

伊斯兰历法时间=1434年的14个月(根据this的说法

我的日历显示的是15号，而不是14号。然而，我不确定这是我的错，还是网站的错。有没有人能确定今天是哪一天？

lblgreg.Text = DateTime.Today.ToString("dd/MM/yyyy");

今天的日期：

DateTime today = DateTime.Today;

将公历转换为Hibri：

CultureInfo Hijri = CultureInfo.CreateSpecificCulture("ar-SA");

        string datetoday_day = today.ToString("dd", Hijri);
        string datetoday_month = today.ToString("MM", Hijri);
        string datetoday_year = today.ToString("yyyy", Hijri);

        int month_check = int.Parse(datetoday_month);

要切换为text-month月值的Switch语句：

switch (month_check) {
            case 01:
                {
                    lbldate.Text  = datetoday_day + " Muharram " + datetoday_year;
                    break;
                }
            case 02:
                {
                    lbldate.Text = datetoday_day + " Safar " + datetoday_year;
                    break;
                }
            case 03:
                {
                    lbldate.Text = datetoday_day + " Rabi Al-Awwal " + datetoday_year;
                    break;
                }
            case 04:
                {
                    lbldate.Text = datetoday_day + " Rabi Al-Akhar " + datetoday_year;
                    break;
                }
            case 05:
                {
                    lbldate.Text = datetoday_day + " Jumada Al-Awwal " + datetoday_year;
                    break;
                }
            case 06:
                {
                    lbldate.Text = datetoday_day + " Jumada Al-Akhirah " + datetoday_year;
                    break;
                }
            case 07:
                {
                    lbldate.Text = datetoday_day + " Rajab " + datetoday_year;
                    break;
                }
            case 08:
                {
                    lbldate.Text = datetoday_day + " Shaban " + datetoday_year;
                    break;
                }
            case 09:
                {
                    lbldate.Text = datetoday_day + " Ramadan " + datetoday_year;
                    break;
                }
            case 10:
                {
                    lbldate.Text = datetoday_day + " Shawwal " + datetoday_year;
                    break;
                }
            case 11:
                {
                    lbldate.Text = datetoday_day + " Dhul-Qadah " + datetoday_year;
                    break;
                }
            case 12:
                {
                    lbldate.Text = datetoday_day + " Dhul-Hijjah " + datetoday_year;
                    break;
                }
        }

Answer 1

请改用UmAlQuraCalendar。

var UmAlQuraCalendar = new UmAlQuraCalendar();
CultureInfo Hijri = new CultureInfo("ar-SA")  
{ 
    DateTimeFormat = { Calendar = UmAlQuraCalendar } 
};

Answer 2

使用HijriAdjustment并将其设置为-2到2之间，如下所示

System.Globalization.HijriCalendar hej = new System.Globalization.HijriCalendar();
    hej.HijriAdjustment =-2;

Answer 3

检查下面的代码

using System.Globalization;
//.......
var arDateTimeFormat= new CultureInfo("ar").DateTimeFormat;
arDateTimeFormat.Calendar = new HijriCalendar { HijriAdjustment = -1}; //set HijriAdjustment between -2 to 2
arDateTimeFormat.AbbreviatedMonthNames = new []{"Muharram", "Safar", "Rabi Al-Awwal", "Rabi Al-Akhar", "Jumada Al-Awwal", "Jumada Al-Akhirah", "Rajab", "Shaban", "Ramadan", "Shawwal", "Dhul-Qadah", "Dhul-Hijjah", string.Empty};
lbldate.Text = DateTime.Now.ToString("dd MMM, yyyy", arDateTimeFormat);