CODE EXAMPLE FOR JAVASCRIPT

milliseconds to date javascript

	//Date.now() gives us the current time in milliseconds counted from 1970-01-01
const todaysDate = Date.now();
    //Let's add 1 year of milliseconds. 
    // We know that there is 1000 milliseconds in 1 second. 
    // 60 seconds in 1 minute, 
    // 60 minutes in 1 hour, 
    // 24 hours in 1 day 
    // and 365 days in one year (leap year not included)
const dateInOneYear = new Date(todaysDate+(1000*60*60*24*365)); 
    //To print them out in a readable way
console.log(new Date(todaysDate).toLocaleDateString())
console.log(new Date(dateInOneYear).toLocaleDateString())