fix comments

client/src/lib/time-ago.ts

@@ -1,5 +0,0 @@
-import { formatDistanceStrict } from 'date-fns';
-
-export function timeAgo(date: Date){
-  return formatDistanceStrict(new Date(date), new Date(), { addSuffix: true })
-}

client/src/lib/time.ts

@@ -0,0 +1,16 @@
+import { formatDistanceStrict } from 'date-fns';
+import { format, isToday, isYesterday } from 'date-fns';
+
+export function timeAgo(date: Date) {
+  return formatDistanceStrict(new Date(date), new Date(), { addSuffix: true });
+}
+
+export function formatDate(date: Date) {
+  if (isToday(date)) {
+    return `Today, ${format(date, 'h:mma')}`;
+  } else if (isYesterday(date)) {
+    return `Yesterday, ${format(date, 'h:mma')}`;
+  } else {
+    return format(date, 'MMM dd, yyyy, h:mma');
+  }
+}