diff --git a/src/calendar.cpp b/src/calendar.cpp
index f81ba1783ca8a214c7f9733ee4554ecb45363a2c..c8702d8c7cece092b6c11b9e21d666aa54ac8919 100644
--- a/src/calendar.cpp
+++ b/src/calendar.cpp
@@ -1366,6 +1366,11 @@ bool Calendar::deletionTracking() const
     return d->mDeletionTracking;
 }
 
+Alarm::List Calendar::alarmsTo(const QDateTime &to) const
+{
+    return alarms(QDateTime(QDate(1900, 1, 1), QTime(0, 0, 0)), to);
+}
+
 void Calendar::virtual_hook(int id, void *data)
 {
     Q_UNUSED(id);
diff --git a/src/calendar.h b/src/calendar.h
index 2c010d6fde0f11403f4d42d9800895c334076c9f..064d0d47cbe4e69ecda40ad9a65cdfa9a7770342 100644
--- a/src/calendar.h
+++ b/src/calendar.h
@@ -1197,6 +1197,16 @@ public:
     */
     virtual Alarm::List alarms(const QDateTime &from, const QDateTime &to, bool excludeBlockedAlarms = false) const = 0;
 
+    /**
+      Return a list of Alarms that occur before the specified timestamp.
+
+      @param to is the ending timestamp.
+      @return the list of Alarms occurring before the specified QDateTime.
+      @since 5.77
+    */
+    Q_REQUIRED_RESULT Alarm::List alarmsTo(const QDateTime &to) const;
+
+
     // Observer Specific Methods //
 
     /**
diff --git a/src/memorycalendar.h b/src/memorycalendar.h
index 539e25ea08b77b0128bd5734be4415bd5d457ad9..0fc128aac6782fceee874cf7e70dd1289fe678af 100644
--- a/src/memorycalendar.h
+++ b/src/memorycalendar.h
@@ -291,7 +291,7 @@ public:
       @param to is the ending timestamp.
       @return the list of Alarms occurring before the specified QDateTime.
     */
-    Q_REQUIRED_RESULT Alarm::List alarmsTo(const QDateTime &to) const;
+    Q_REQUIRED_RESULT Alarm::List alarmsTo(const QDateTime &to) const; // TODO KF6 remove, already defined in Calendar
 
     /**
       @copydoc Calendar::incidenceUpdate(const QString &,const QDateTime &)