JavaScript Utility Function to get time ago etc

README.md

For example

timeAgo('Sun Sep 25 2022 12:57:46 GMT+0600 (Bangladesh Standard Time)'); // 16 seconds ago

time-ago.js

function timeAgo(input) {
  const date = (input instanceof Date) ? input : new Date(input);
  const formatter = new Intl.RelativeTimeFormat('en');
  const ranges = {
    years: 3600 * 24 * 365,
    months: 3600 * 24 * 30,
    weeks: 3600 * 24 * 7,
    days: 3600 * 24,
    hours: 3600,
    minutes: 60, 
    seconds: 1
  };
  const secondsElapsed = (date.getTime() - Date.now()) / 1000;
  for (let key in ranges) {
    if (ranges[key] < Math.abs(secondsElapsed)) {
      const delta = secondsElapsed / ranges[key];
      return formatter.format(Math.round(delta), key);
    }
  }
}