JAVASCRIPT

javascript new Date(milliseconds)

const time1 = new Date(0);

// epoch time
console.log(time1); // Thu Jan 01 1970 05:30:00

// 100000000000 milliseconds after the epoch time
const time2 = new Date(100000000000)
console.log(time2); // Sat Mar 03 1973 15:16:40

millis javascript

millis basically meant milliseconds