Wie zeigt man JavaScript datetime in 12 Stunden AM/PM-Format?

Question

Wie zeigt man ein JavaScript datetime-Objekt im 12-Stunden-Format (AM/PM) an?

Answer 1

Auschecken Datejs . Ihre eingebauten Formatierer können dies tun: http://code.google.com/p/datejs/wiki/APIDocumentation#toString

Es ist eine wirklich praktische Bibliothek, besonders wenn Sie vorhaben, andere Dinge mit Datumsobjekten zu tun.

Answer 2

<script>
var todayDate = new Date();
var getTodayDate = todayDate.getDate();
var getTodayMonth =  todayDate.getMonth()+1;
var getTodayFullYear = todayDate.getFullYear();
var getCurrentHours = todayDate.getHours();
var getCurrentMinutes = todayDate.getMinutes();
var getCurrentAmPm = getCurrentHours >= 12 ? 'PM' : 'AM';
getCurrentHours = getCurrentHours % 12;
getCurrentHours = getCurrentHours ? getCurrentHours : 12; 
getCurrentMinutes = getCurrentMinutes < 10 ? '0'+getCurrentMinutes : getCurrentMinutes;
var getCurrentDateTime = getTodayDate + '-' + getTodayMonth + '-' + getTodayFullYear + ' ' + getCurrentHours + ':' + getCurrentMinutes + ' ' + getCurrentAmPm;
alert(getCurrentDateTime);
</script>

Answer 3

Wenn Sie Zeit haben, als String wie folgt var myTime = "15:30" , dann können Sie den folgenden Code verwenden, um am pm zu erhalten.

var hour = parseInt(myTime.split(":")[0]) % 12;
var timeInAmPm = (hour == 0 ? "12": hour ) + ":" + myTime.split(":")[1] + " " + (parseInt(parseInt(myTime.split(":")[0]) / 12) < 1 ? "am" : "pm");

Answer 4

Hier ist eine weitere, einfache und sehr effektive Möglichkeit:

        var d = new Date();

        var weekday = new Array(7);
        weekday[0] = "Sunday";
        weekday[1] = "Monday";
        weekday[2] = "Tuesday";
        weekday[3] = "Wednesday";
        weekday[4] = "Thursday";
        weekday[5] = "Friday";
        weekday[6] = "Saturday";

        var month = new Array(11);
        month[0] = "January";
        month[1] = "February";
        month[2] = "March";
        month[3] = "April";
        month[4] = "May";
        month[5] = "June";
        month[6] = "July";
        month[7] = "August";
        month[8] = "September";
        month[9] = "October";
        month[10] = "November";
        month[11] = "December";

        var t = d.toLocaleTimeString().replace(/:\d+ /, ' ');

        document.write(weekday[d.getDay()] + ',' + " " + month[d.getMonth()] + " " + d.getDate() + ',' + " " + d.getFullYear() + '<br>' + d.toLocaleTimeString());

    </script></div><!-- #time -->

Answer 5

function startTime() {
  const today = new Date();
  let h = today.getHours();
  let m = today.getMinutes();
  let s = today.getSeconds();
  var meridian = h >= 12 ? "PM" : "AM";
  h = h % 12;
  h = h ? h : 12;
  m = m < 10 ? "0" + m : m;
  s = s < 10 ? "0" + s : s;
  var strTime = h + ":" + m + ":" + s + " " + meridian;
  document.getElementById('time').innerText = strTime;
  setTimeout(startTime, 1000);
}

startTime();

<h1 id='time'></h1>