Question

I’ve been struggling with javascript more than an hour and came up with a solution – to ask you for help!

A RSS Feed generates the date of every post in this format 2011-05-18T17:32:43Z. How can I make it look like that 17:32 18.05.2011?

Thank you in advance!

Answer 1

Assuming you’ve parsed the RSS date into a JS Date object (which can be tricky, since many Date.parse implementations don’t accept ISO-8601 dates like that)…

//var d=new Date(/*...*/)
// 17:32 18.05.2011
pad(d.getHours())+':'+d.getMinutes()+' '+
  pad(d.getDate())+'.'+pad(d.getMonth()+1)+d.getFullYear();

(getMonth returns 0-11 based month)

… you’d also want some kind of zero buffering for the month (in your example) and possibly day, hour (depending)….

function pad(val,len) {
  var s=val.toString();
  while (s.length<len) {s='0'+s;}
  return s;
}

Optionally from string->string you could use:

function reformat(str) {
  var isodt=string.match(/^\s*(\-?\d{4}|[\+\-]\d{5,})(\-)?(\d\d)\2(\d\d)T(\d\d)(:)?(\d\d)?(?:\6(\d\d))?([\.,]\d+)?(Z|[\+\-](?:\d\d):?(?:\d\d)?)\s*$/i);
  if (isodt===null) {return '';} // FAILED
  return isodt[5]+':'+isodt[7]+' '+isodt[4]+'.'+isodt[3]+'.'+isodt[1];
}