diff --git a/qt/aqt/main.py b/qt/aqt/main.py
index cde6acbe6..e613e385f 100644
--- a/qt/aqt/main.py
+++ b/qt/aqt/main.py
@@ -554,6 +554,8 @@ class AnkiQt(QMainWindow):
                 last_day_cutoff = self.col.sched.day_cutoff
                 self.reviewer._refresh_needed = RefreshNeeded.QUEUES
                 self.reviewer.refresh_if_needed()
+            if last_day_cutoff != current_cutoff:
+                gui_hooks.day_did_change()
 
             # schedule another check
             secs_until_cutoff = current_cutoff - int_time()
diff --git a/qt/tools/genhooks_gui.py b/qt/tools/genhooks_gui.py
index 57c5443cf..d0136fa3d 100644
--- a/qt/tools/genhooks_gui.py
+++ b/qt/tools/genhooks_gui.py
@@ -898,6 +898,7 @@ gui_hooks.webview_did_inject_style_into_page.append(mytest)
 
         `output` provides access to the unused/missing file lists and the text output that will be shown in the Check Media screen.""",
     ),
+    Hook(name="day_did_change", doc="""Called when Anki moves to the next day."""),
     # Importing/exporting data
     ###################
     Hook(