diff --git a/web/app.js b/web/app.js
index 5466a6c..b636f96 100644
--- a/web/app.js
+++ b/web/app.js
@@ -384,6 +384,7 @@ const BOOKMARK_WINDOW_DAYS = 28;
 const BOOKMARK_SUFFIXES = ['Gewinnspiel', 'gewinnen', 'verlosen'];
 const DEFAULT_BOOKMARK_LABEL = 'Gewinnspiel / gewinnen / verlosen';
 const BOOKMARK_PREFS_KEY = 'trackerBookmarkPreferences';
+const BOOKMARK_RELATIVE_TIME_REFRESH_MS = 60000;
 const INCLUDE_EXPIRED_STORAGE_KEY = 'trackerIncludeExpired';
 const POSTS_SEARCH_STORAGE_KEY = 'trackerPostsSearchTerm';
 const PENDING_BULK_COUNT_STORAGE_KEY = 'trackerPendingBulkCount';
@@ -750,6 +751,8 @@ let manualPostModalPreviousOverflow = '';
 let activeDeadlinePicker = null;
 let bookmarkPanelVisible = false;
 let bookmarkOutsideHandler = null;
+let bookmarkRelativeTimeTimer = null;
+let bookmarkRelativeTimeListenersBound = false;
 let bookmarkSearchTerm = '';
 let bookmarkSortMode = 'recent';
 let bookmarkSortDirection = 'desc';
@@ -1292,6 +1295,64 @@ async function refreshBookmarks(options = {}) {
   return bookmarkFetchPromise;
 }
 
+function isBookmarksUiVisible() {
+  if (bookmarkPanelVisible) {
+    return true;
+  }
+  const bookmarksView = document.querySelector('[data-view="bookmarks"]');
+  return Boolean(bookmarksView && bookmarksView.classList.contains('app-view--active'));
+}
+
+function refreshBookmarkRelativeTimes() {
+  if (!bookmarksList || !bookmarkState.loaded) {
+    return;
+  }
+  if (!isBookmarksUiVisible()) {
+    return;
+  }
+  renderBookmarks();
+}
+
+function startBookmarkRelativeTimeRefresh() {
+  if (bookmarkRelativeTimeTimer) {
+    return;
+  }
+  bookmarkRelativeTimeTimer = setInterval(() => {
+    if (document.visibilityState !== 'visible') {
+      return;
+    }
+    refreshBookmarkRelativeTimes();
+  }, BOOKMARK_RELATIVE_TIME_REFRESH_MS);
+}
+
+function bindBookmarkRelativeTimeRefreshListeners() {
+  if (bookmarkRelativeTimeListenersBound) {
+    return;
+  }
+  bookmarkRelativeTimeListenersBound = true;
+
+  document.addEventListener('visibilitychange', () => {
+    if (document.visibilityState === 'visible') {
+      refreshBookmarkRelativeTimes();
+    }
+  });
+
+  window.addEventListener('focus', () => {
+    refreshBookmarkRelativeTimes();
+  });
+
+  window.addEventListener('pageshow', () => {
+    refreshBookmarkRelativeTimes();
+  });
+
+  window.addEventListener('app:view-change', (event) => {
+    const view = event && event.detail ? event.detail.view : null;
+    if (view === 'bookmarks') {
+      refreshBookmarkRelativeTimes();
+    }
+  });
+}
+
 function formatFacebookDateParts(date) {
   const year = date.getFullYear();
   const month = date.getMonth() + 1;
@@ -1947,6 +2008,8 @@ function initializeBookmarks() {
     return;
   }
 
+  startBookmarkRelativeTimeRefresh();
+  bindBookmarkRelativeTimeRefreshListeners();
   refreshBookmarks().catch(() => {});
 
   if (bookmarkPanel) {