Today date in arabic format: <samp></samp>

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Date '2015/04/22' in Bengali format: <samp></samp>

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Date '2015/04/22' in Iranian Persian format: <samp></samp>

body{
  font-family: bookman old style;
  font-size: 14pt;
}

samp{
  color: CRIMSON;
  font-weight: bold;
}

 var formatter = new Intl.DateTimeFormat('ar'), 
          // Arabic
          output = formatter.format(),
     samps = document.querySelectorAll('samp');
      samps[0].textContent = output
      /* returned "٢٢‏/٤‏/٢٠١٥", the current date(since no date was given as input) in arabic */

      var mydate = new Date('2015/04/22');
samps[1].textContent = new Intl.DateTimeFormat('bn').format(mydate);      
      // Bengali, returns "২২/৪/২০১৫"

      samps[2].textContent = new Intl.DateTimeFormat('fa-pes').format(mydate);
      // Iranian Persian, returns "۱۳۹۴/۲/۲ ه‍.ش."