diff --git a/aleksis/apps/chronos/util/build.py b/aleksis/apps/chronos/util/build.py
index 483df4d37a3030ff5f7255500e93d86eb0bbdd2c..d2f7214826fec61b3351758231cadfcf1194bed0 100644
--- a/aleksis/apps/chronos/util/build.py
+++ b/aleksis/apps/chronos/util/build.py
@@ -25,6 +25,7 @@ def build_timetable(
     type_: Union[TimetableType, str],
     obj: Union[Group, Room, Person],
     date_ref: Union[CalendarWeek, date],
+    with_holidays: bool = True,
 ):
     needed_breaks = []
 
@@ -42,9 +43,9 @@ def build_timetable(
 
     # Get matching holidays
     if is_week:
-        holidays_per_weekday = Holiday.in_week(date_ref)
+        holidays_per_weekday = Holiday.in_week(date_ref) if with_holidays else {}
     else:
-        holiday = Holiday.on_day(date_ref)
+        holiday = Holiday.on_day(date_ref) if with_holidays else None
 
     # Get matching lesson periods
     lesson_periods = LessonPeriod.objects
@@ -421,8 +422,11 @@ def build_substitutions_list(wanted_day: date) -> List[dict]:
     return rows
 
 
-def build_weekdays(base: List[Tuple[int, str]], wanted_week: CalendarWeek) -> List[dict]:
-    holidays_per_weekday = Holiday.in_week(wanted_week)
+def build_weekdays(
+    base: List[Tuple[int, str]], wanted_week: CalendarWeek, with_holidays: bool = True
+) -> List[dict]:
+    if with_holidays:
+        holidays_per_weekday = Holiday.in_week(wanted_week)
 
     weekdays = []
     for key, name in base[TimePeriod.weekday_min : TimePeriod.weekday_max + 1]:
@@ -431,8 +435,9 @@ def build_weekdays(base: List[Tuple[int, str]], wanted_week: CalendarWeek) -> Li
             "key": key,
             "name": name,
             "date": wanted_week[key],
-            "holiday": holidays_per_weekday[key] if key in holidays_per_weekday else None,
         }
+        if with_holidays:
+            weekday["holiday"] = holidays_per_weekday[key] if key in holidays_per_weekday else None
         weekdays.append(weekday)
 
     return weekdays
diff --git a/aleksis/apps/chronos/views.py b/aleksis/apps/chronos/views.py
index 50ebab5bf75762dd21f072c4a7282f0d9b4e3e0e..a13d65356ebb2ec4981eb375170f6b0c35aac5b8 100644
--- a/aleksis/apps/chronos/views.py
+++ b/aleksis/apps/chronos/views.py
@@ -148,15 +148,19 @@ def timetable(
         wanted_week = TimePeriod.get_relevant_week_from_datetime()
 
     # Build timetable
-    timetable = build_timetable(type_, el, wanted_week)
+    timetable = build_timetable(type_, el, wanted_week, with_holidays=is_smart)
     context["timetable"] = timetable
 
     # Add time periods
     context["periods"] = TimePeriod.get_times_dict()
 
     # Build lists with weekdays and corresponding dates (long and short variant)
-    context["weekdays"] = build_weekdays(TimePeriod.WEEKDAY_CHOICES, wanted_week)
-    context["weekdays_short"] = build_weekdays(TimePeriod.WEEKDAY_CHOICES_SHORT, wanted_week)
+    context["weekdays"] = build_weekdays(
+        TimePeriod.WEEKDAY_CHOICES, wanted_week, with_holidays=is_smart
+    )
+    context["weekdays_short"] = build_weekdays(
+        TimePeriod.WEEKDAY_CHOICES_SHORT, wanted_week, with_holidays=is_smart
+    )
 
     context["weeks"] = get_weeks_for_year(year=wanted_week.year)
     context["week"] = wanted_week