diff --git a/src/App.vue b/src/App.vue
index 4c0fe18..0f7a129 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,9 +1,10 @@
 <script setup>
-import { ref, onMounted, onBeforeUnmount } from 'vue'
+import { ref, onMounted, onBeforeUnmount, watch } from 'vue'
 import CalendarView from './components/CalendarView.vue'
 import EventDialog from './components/EventDialog.vue'
 import { useCalendarStore } from './stores/CalendarStore'
 import { lang } from './utils/locale'
+import { formatTodayString } from './utils/date'
 
 const eventDialog = ref(null)
 const calendarStore = useCalendarStore()
@@ -38,6 +39,8 @@ onMounted(() => {
   document.addEventListener('keydown', handleGlobalKey, { passive: false })
   // Set document language via shared util
   if (lang) document.documentElement.setAttribute('lang', lang)
+  // Initialize title
+  document.title = formatTodayString(new Date(calendarStore.now))
 })
 
 onBeforeUnmount(() => {
@@ -61,6 +64,15 @@ const handleEditEvent = (eventClickPayload) => {
 }
 
 const handleClearSelection = () => {}
+
+// Watch today's date to update document title
+watch(
+  () => calendarStore.now,
+  (val) => {
+    document.title = formatTodayString(new Date(val))
+  },
+  { immediate: false },
+)
 </script>
 
 <template>