Convert Time 24 hrs to 12 hrs format In javascript

Last Updated: 12 March 2017

date

javascript

12hrs

convert

Here is the 24 hrs time drop down. so please select one time. for this we used onchange event.

Select Time :

Select Time : <select id="time" onchange="Convert24To12Format(this.value)">
	<option value="01:00">01:00</option>
	<option value="01:30">01:30</option>
	<option value="02:00">02:00</option>
	<option value="02:30">02:30</option>
	<option value="03:00">03:00</option>
	<option value="03:30">03:30</option>
	<option value="04:00">04:00</option>
	<option value="04:30">04:30</option>
	<option value="05:00">05:00</option>
	<option value="05:30">05:30</option>
	<option value="06:00">06:00</option>
	<option value="06:30">06:30</option>
	<option value="07:00">07:00</option>
	<option value="07:30">07:30</option>
	<option value="08:00">08:00</option>
	<option value="08:30">08:30</option>
	<option value="09:00">09:00</option>
	<option value="09:30">09:30</option>
	<option value="10:00">10:00</option>
	<option value="10:30">10:30</option>
	<option value="11:00">11:00</option>
	<option value="11:30">11:30</option>
	<option value="12:00">12:00</option>
	<option value="12:30">12:30</option>
	<option value="13:00">13:00</option>
	<option value="13:30">13:30</option>
	<option value="14:00">14:00</option>
	<option value="14:30">14:30</option>
	<option value="15:00">15:00</option>
	<option value="15:30">15:30</option>
	<option value="16:00">16:00</option>
	<option value="16:30">16:30</option>
	<option value="17:00">17:00</option>
	<option value="17:30">17:30</option>
	<option value="18:00">18:00</option>
	<option value="18:30">18:30</option>
	<option value="19:00">19:00</option>
	<option value="19:30">19:30</option>
	<option value="20:00">20:00</option>
	<option value="20:30">20:30</option>
	<option value="21:00">21:00</option>
	<option value="21:30">21:30</option>
	<option value="22:00">22:00</option>
	<option value="22:30">22:30</option>
	<option value="23:00">23:00</option>
	<option value="23:30">23:30</option>
</select>
	
<script type="text/javascript">
function Convert24To12Format(format){
	var newformat = '', timeFormat = ' AM';
	if(format != ''){
		var old_arr = format.split(':');
		var new_arr = parseInt(old_arr);
		newformat = old_arr[0];
		if(new_arr > 12){
			newformat = (new_arr - 12) + '';
			timeFormat = ' PM';
		}

		if(newformat.length < 2) newformat = '0' + newformat;
		newformat += ":" + old_arr[1] + timeFormat;
	}
	alert(newformat);
}
</script>