feat: add last updated timestamp to WeatherData component

frontend/src/components/WeatherData.tsx

@@ -1,5 +1,6 @@
 import React from "react";
 import { Sunrise, Sunset } from "lucide-react";
+import { getDateTime } from "../utils/utils";
 
 const WeatherData: React.FC = () => {
   const weatherRaw = localStorage.getItem("weather");
@@ -75,6 +76,11 @@ const WeatherData: React.FC = () => {
                 : "--:--"}
             </span>
           </div>
+          <div className="flex items-center gap-3">
+            <span className="text-base text-gray-600 italic font-semibold">
+              Last updated: {getDateTime()}
+            </span>
+          </div>
         </div>
       </div>
     </div>

frontend/src/utils/utils.ts

@@ -0,0 +1,24 @@
+export const getDateTime = () => {
+  const now = new Date();
+  const day = now.getDate();
+  const month = now.toLocaleString("en-GB", { month: "long" });
+  const hours = now.getHours().toString().padStart(2, "0");
+  const minutes = now.getMinutes().toString().padStart(2, "0");
+
+  // Ordinal suffix
+  const getOrdinal = (n: number) => {
+    if (n > 3 && n < 21) return "th";
+    switch (n % 10) {
+      case 1:
+        return "st";
+      case 2:
+        return "nd";
+      case 3:
+        return "rd";
+      default:
+        return "th";
+    }
+  };
+
+  return `${day}${getOrdinal(day)} ${month}, ${hours}:${minutes}`;
+};