Get time difference days-hours-minutes

// Get the time difference  
            getTimeDifference(createTime){                 // let createTime ="1584861145000";//Create time                 let currentTime =new Date().getTime();//                 let timeDifference = currentTime-createTime;                 var days=Math.floor( timeDifference/(24*3600*1000));                                            //Calculate the number of hours                 let leave1=timeDifference%(24*3600*1000) //Calculate the number of milliseconds remaining after the number of days                 let hours=Math.floor(leave1/(3600* 1000));                     //Calculate the difference in minutes                 let leave2=leave1%(3600*1000); //Calculate the number of milliseconds remaining after the hours                 let minutes=Math.floor(leave2/(60*1000));                 //Calculate Seconds difference











                let leave3=leave2%(60*1000); //calculate the number of milliseconds remaining after the number of minutes
                let seconds=Math.round(leave3/1000);
               
                // let travel_time=" "+days+"day"+hours+"hour" +minutes+"minutes";

                return travel_time ;
            },