javascript - Converting integer to HH:MM:SS

Question

I'm trying to merge two separate integers and convert into a 24 hour format hh:mm:ss. Below is my code:

    var hr = 5;
    var min = 30;
    /**convert to hh:mm:ss*****/
    var combine_time = new Date(hr + ":" + min + ":" + "00");
    
    alert(combine_arrive);

However, my javascript show it as invalid date. Can anyone guide me? Thank you

question from:https://stackoverflow.com/questions/65860186/converting-integer-to-hhmmss

Answer 1

Perhaps you meant this?

We cannot know if 5 is 5am (05) or pm (17) unless you tell us

const arrive_hr = 5;
const arrive_min = 30;

const pad = num => ("0"+num).slice(-2);
const combine_time = `${pad(arrive_hr)}:${pad(arrive_min)}:00`;
console.log(combine_time)