免责声明这不是一个完整的答案，因为我真的无法处理我不知道的迹象。这会帮助你找到正确的方向。

我的（基本）解决方案取自StackExchange, 我为您的functions.php:

function ArabicDate( $time = false ) {

    if ( $time === false ) {
        $time = current_time( \'timestamp\' );
    }
    $months = array("Jan" => "يناير", "Feb" => "فبراير", "Mar" => "مارس", "Apr" => "أبريل", "May" => "مايو", "Jun" => "يونيو", "Jul" => "يوليو", "Aug" => "أغسطس", "Sep" => "سبتمبر", "Oct" => "أكتوبر", "Nov" => "نوفمبر", "Dec" => "ديسمبر");
    $your_date = date( \'y-m-d\', $time ); // The Date calculated from the $time variable
    $en_month = date("M", $time );
    foreach ($months as $en => $ar) {
        if ($en == $en_month) { $ar_month = $ar; }
    }

    $find = array ("Sat", "Sun", "Mon", "Tue", "Wed" , "Thu", "Fri");
    $replace = array ("السبت", "الأحد", "الإثنين", "الثلاثاء", "الأربعاء", "الخميس", "الجمعة");
    $ar_day_format = date(\'D\', $time); // The Current Day
    $ar_day = str_replace($find, $replace, $ar_day_format);

    $standard = array("0","1","2","3","4","5","6","7","8","9");
    $eastern_arabic_symbols = array("٠","١","٢","٣","٤","٥","٦","٧","٨","٩");

    // use this line to format your arabic date
    $current_date = $ar_day.\' \'.date( \'d\', $time ).\' / \'.$ar_month.\' / \'.date( \'Y\', $time );
    $arabic_date = str_replace($standard , $eastern_arabic_symbols , $current_date);

    return $arabic_date;

}

这不是最好的解决方案，因为您必须硬编码阿拉伯日期的时间格式。我很想做得更好，但我不知道如何确认这些标志的输出是否正确。

改变$ar_month 到date( \'m\', $time ) 例如，如果希望月份是数字，而不是文本中的月份。

之后，您可以使用以下代码过滤日期函数：

add_filter( \'get_the_date\', \'f711_convert_to_arabic_date\', 10, 3 );
function f711_convert_to_arabic_date( $the_date, $d, $post ) {
    $posttime = strtotime( $post->post_date );
    return ArabicDate( $posttime );
}

现在你的模板标签（get_the_date() 和the_date() ) 回显或返回您的阿拉伯日期。

如果您想在模板中使用它，只需调用echo ArabicDate() 当前时间，或echo ArabicDate( $timestamp ) 任何阿拉伯日期。