Calculate time util function added

lib/hooks/useCalculateTimeLeft.ts

@@ -0,0 +1,15 @@
+export const calculateTimeLeft = (targetDate: string) => {
+  const now = new Date();
+  const eventDate = new Date(targetDate); // Parse target date directly
+  const timeDifference = eventDate.getTime() - now.getTime();
+
+  if (timeDifference <= 0) {
+    return { hours: 0, minutes: 0, seconds: 0 }; // Countdown finished
+  }
+
+  const hours = Math.floor(timeDifference / (1000 * 60 * 60));
+  const minutes = Math.floor((timeDifference % (1000 * 60 * 60)) / (1000 * 60));
+  const seconds = Math.floor((timeDifference % (1000 * 60)) / 1000);
+
+  return { hours, minutes, seconds };
+};