v2.1 lol

src/inc/lib.mjs

@@ -1,3 +1,21 @@
+const epochs = [
+  ["year", 31536000],
+  ["month", 2592000],
+  ["day", 86400],
+  ["hour", 3600],
+  ["minute", 60],
+  ["second", 1]
+];
+const getDuration = timeAgoInSeconds => {
+  for(let [name, seconds] of epochs) {
+    const interval = ~~(timeAgoInSeconds / seconds);
+    if(interval >= 1) return {
+      interval: interval,
+      epoch: name
+    };
+  }
+};
+
 export default new class {
   formatSize(size, i = ~~(Math.log(size) / Math.log(1024))) {
     return (size / Math.pow(1024, i)).toFixed(2) * 1 + " " + ["B", "kB", "MB", "GB", "TB"][i];
@@ -5,4 +23,8 @@ export default new class {
   calcSpeed(b, s) {
     return (Math.round((b * 8 / s / 1e6) * 1e4) / 1e4);
   }
+  timeAgo(date) {
+    const { interval, epoch } = getDuration(~~((new Date() - new Date(date)) / 1e3));
+    return `${interval} ${epoch}${interval === 1 ? "" : "s"} ago`;
+  }
 };