diff --git a/backend/src/appointment/controller/calendar.py b/backend/src/appointment/controller/calendar.py
index 77ac7a451..d82c9a2fd 100644
--- a/backend/src/appointment/controller/calendar.py
+++ b/backend/src/appointment/controller/calendar.py
@@ -318,12 +318,19 @@ def list_events(self, start, end):
             # Mark tentative events
             tentative = status == "tentative"
 
+            title = e.vobject_instance.vevent.summary.value
+            start = e.vobject_instance.vevent.dtstart.value
+            # get_duration grabs either end or duration into a timedelta
+            end = start + e.get_duration()
+            # if start doesn't hold time information (no datetime), it's a whole day
+            all_day = not isinstance(start, datetime)
+
             events.append(
                 schemas.Event(
-                    title=e.vobject_instance.vevent.summary.value,
-                    start=e.vobject_instance.vevent.dtstart.value,
-                    end=e.vobject_instance.vevent.dtend.value,
-                    all_day=not isinstance(e.vobject_instance.vevent.dtstart.value, datetime),
+                    title=title,
+                    start=start,
+                    end=end,
+                    all_day=all_day,
                     tentative=tentative,
                     description=e.icalendar_component["description"] if "description" in e.icalendar_component else "",
                 )
diff --git a/frontend/src/components/CalendarQalendar.vue b/frontend/src/components/CalendarQalendar.vue
index 33a4e60a7..088d78337 100644
--- a/frontend/src/components/CalendarQalendar.vue
+++ b/frontend/src/components/CalendarQalendar.vue
@@ -187,7 +187,7 @@ const calendarEvents = computed(() => {
           ? start.format(dateFormatStrings.qalendarFullDay)
           : start.format(dateFormatStrings.qalendar),
         end: event.all_day
-          ? end.format(dateFormatStrings.qalendarFullDay)
+          ? end.subtract(1, 'minute').format(dateFormatStrings.qalendarFullDay)
           : end.format(dateFormatStrings.qalendar),
       },
       description: event.description,