JSFiddle - React, Tailwind, and code Playground

by Arvind Pal

JavaScript

var timeIn12 = "12:30:00pM";

let splitted = timeIn12.split(":"); 
if(splitted[2].charAt(2) === "P" || splitted[2].charAt(2) === "p"){
	if(splitted[0] !== "12") {
  	splitted[0] = (parseInt(splitted[0])+12).toString();
  }  
} else if ((splitted[2].charAt(2) === "A" || splitted[2].charAt(2) === "a")&& splitted[0]==="12"){
	splitted[0] = "00";
}
splitted[2] = splitted[2].charAt(0)+splitted[2].charAt(1);
alert(splitted.join(":"));