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const timeStr = '05:00 PM';
const secondTimeStr = '11:42 PM';
const convertTime = timeStr => {
const [time, modifier] = timeStr.split(' ');
let [hours, minutes] = time.split(':');
if (hours === '12') {
hours = '00';
}
if (modifier === 'PM') {
hours = parseInt(hours, 10) + 12;
}
return `${hours}:${minutes}`;
};
console.log(convertTime(timeStr));
console.log(convertTime(secondTimeStr));
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function tConvert (time) {
// Check correct time format and split into components
time = time.toString ().match (/^([01]\d|2[0-3])(:)([0-5]\d)(:[0-5]\d)?$/) || [time];
if (time.length > 1) { // If time format correct
time = time.slice (1); // Remove full string match value
time[5] = +time[0] < 12 ? 'AM' : 'PM'; // Set AM/PM
time[0] = +time[0] % 12 || 12; // Adjust hours
}
return time.join (''); // return adjusted time or original string
}//end function
tConvert ('18:00:00');
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function Converttimeformat() {
// var time = $("#starttime").val();
var time = document.getElementById('txttime').value;
var hrs = Number(time.match(/^(\d+)/)[1]);
var mnts = Number(time.match(/:(\d+)/)[1]);
var format = time.match(/\s(.*)$/)[1];
if (format == "PM" && hrs < 12) hrs = hrs + 12;
if (format == "AM" && hrs == 12) hrs = hrs - 12;
var hours = hrs.toString();
var minutes = mnts.toString();
if (hrs < 10) hours = "0" + hours;
if (mnts < 10) minutes = "0" + minutes;
alert(hours + ":" + minutes);
}