diff --git a/src/calibre/gui2/ui.py b/src/calibre/gui2/ui.py
index 5a00147b82..824d2fdf22 100644
--- a/src/calibre/gui2/ui.py
+++ b/src/calibre/gui2/ui.py
@@ -14,7 +14,6 @@ import os
 import re
 import sys
 import textwrap
-import time
 from collections import OrderedDict, deque
 from io import BytesIO
 from queue import Empty, Queue
@@ -1253,6 +1252,7 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin,  # {{{
             self.library_view.connect_to_book_display_timer.stop()
         self.shutdown_started.emit()
         self.show_shutdown_message()
+        timed_print('Shutdown message shown...')
         self.server_change_notification_timer.stop()
         self.extra_files_watcher.clear()
         try:
@@ -1266,7 +1266,9 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin,  # {{{
                 _('Running database shutdown plugins. This could take a few seconds...'))
 
         self.grid_view.shutdown()
+        timed_print('Grid view shutdown')
         self.bookshelf_view.shutdown()
+        timed_print('Bookshelf view shutdown')
         db = None
         try:
             db = self.library_view.model().db
@@ -1282,6 +1284,7 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin,  # {{{
             db.prefs.write_serialized(prefs['library_path'])
         for action in self.iactions.values():
             action.shutting_down()
+        timed_print('Actions shutdown')
         if write_settings:
             self.write_settings()
         if getattr(self, 'update_checker', None):
@@ -1291,6 +1294,7 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin,  # {{{
         self.job_manager.threaded_server.close()
         self.device_manager.keep_going = False
         self.auto_adder.stop()
+        timed_print('Various services shutdown')
         # Do not report any errors that happen after the shutdown
         # We cannot restore the original excepthook as that causes PyQt to
         # call abort() on unhandled exceptions
@@ -1306,8 +1310,10 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin,  # {{{
         mb = self.library_view.model().metadata_backup
         if mb is not None:
             mb.stop()
+        timed_print('Metadata backup shutdown')
 
         self.library_view.model().close()
+        timed_print('Current database closed')
 
         try:
             if self.content_server is not None:
@@ -1319,18 +1325,20 @@ class Main(MainWindow, MainWindowMixin, DeviceMixin, EmailMixin,  # {{{
                 s = self.content_server
                 self.content_server = None
                 s.exit()
+                timed_print('Content server shutdown')
         except KeyboardInterrupt:
             pass
         except Exception:
             pass
         self.hide_windows()
+        timed_print('Windows hidden')
         if self._spare_pool is not None:
             self._spare_pool.shutdown()
         from calibre.scraper.simple import cleanup_overseers
         wait_for_cleanup = cleanup_overseers()
         from calibre.live import async_stop_worker
         wait_for_stop = async_stop_worker()
-        time.sleep(2)
+        timed_print('Waiting for overseers and live to shutdown')
         self.istores.join()
         wait_for_cleanup()
         wait_for_stop()