diff --git a/Userland/Applications/Calendar/AddEventDialog.cpp b/Userland/Applications/Calendar/AddEventDialog.cpp
index c099122e69..dbd144fc1c 100644
--- a/Userland/Applications/Calendar/AddEventDialog.cpp
+++ b/Userland/Applications/Calendar/AddEventDialog.cpp
@@ -66,10 +66,6 @@ AddEventDialog::AddEventDialog(Core::DateTime date_time, EventManager& event_man
     auto& starting_minute_input = *widget->find_descendant_of_type_named<GUI::SpinBox>("start_minute");
     starting_minute_input.set_value(m_start_date_time.minute());
 
-    auto& starting_meridiem_input = *widget->find_descendant_of_type_named<GUI::ComboBox>("start_meridiem");
-    starting_meridiem_input.set_model(MeridiemListModel::create());
-    starting_meridiem_input.set_selected_index(0);
-
     auto& end_date_box = *widget->find_descendant_of_type_named<GUI::TextBox>("end_date");
     end_date_box.set_text(MUST(m_start_date_time.to_string("%Y-%m-%d"sv)));
 
@@ -88,27 +84,20 @@ AddEventDialog::AddEventDialog(Core::DateTime date_time, EventManager& event_man
     auto& ending_minute_input = *widget->find_descendant_of_type_named<GUI::SpinBox>("end_minute");
     ending_minute_input.set_value(m_end_date_time.minute());
 
-    auto& ending_meridiem_input = *widget->find_descendant_of_type_named<GUI::ComboBox>("end_meridiem");
-    ending_meridiem_input.set_model(MeridiemListModel::create());
-    ending_meridiem_input.set_selected_index(0);
-
     auto& ok_button = *widget->find_descendant_of_type_named<GUI::Button>("ok_button");
     ok_button.on_click = [&](auto) {
         add_event_to_calendar().release_value_but_fixme_should_propagate_errors();
-
         done(ExecResult::OK);
     };
 
     auto update_starting_input_values = [&, this]() {
         auto hour = starting_hour_input.value();
         auto minute = starting_minute_input.value();
-
         m_start_date_time.set_time_only(hour, minute);
     };
     auto update_ending_input_values = [&, this]() {
         auto hour = ending_hour_input.value();
         auto minute = ending_minute_input.value();
-
         m_end_date_time.set_time_only(hour, minute);
     };
     starting_hour_input.on_change = [update_starting_input_values](auto) { update_starting_input_values(); };
@@ -144,37 +133,4 @@ ErrorOr<void> AddEventDialog::add_event_to_calendar()
     return {};
 }
 
-int AddEventDialog::MeridiemListModel::row_count(const GUI::ModelIndex&) const
-{
-    return 2;
-}
-
-ErrorOr<String> AddEventDialog::MeridiemListModel::column_name(int column) const
-{
-    switch (column) {
-    case Column::Meridiem:
-        return "Meridiem"_string;
-    default:
-        VERIFY_NOT_REACHED();
-    }
-}
-
-GUI::Variant AddEventDialog::MeridiemListModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
-{
-    constexpr Array meridiem_names = {
-        "AM", "PM"
-    };
-
-    auto& meridiem = meridiem_names[index.row()];
-    if (role == GUI::ModelRole::Display) {
-        switch (index.column()) {
-        case Column::Meridiem:
-            return meridiem;
-        default:
-            VERIFY_NOT_REACHED();
-        }
-    }
-    return {};
-}
-
 }
diff --git a/Userland/Applications/Calendar/AddEventDialog.gml b/Userland/Applications/Calendar/AddEventDialog.gml
index 0f560aaa29..9cbe0fe01d 100644
--- a/Userland/Applications/Calendar/AddEventDialog.gml
+++ b/Userland/Applications/Calendar/AddEventDialog.gml
@@ -60,12 +60,6 @@
             min: 1
             max: 59
         }
-
-        @GUI::ComboBox {
-            name: "start_meridiem"
-            model_only: true
-            fixed_size: [55, 20]
-        }
     }
 
     @GUI::Widget {
@@ -106,12 +100,6 @@
             min: 1
             max: 59
         }
-
-        @GUI::ComboBox {
-            name: "end_meridiem"
-            model_only: true
-            fixed_size: [55, 20]
-        }
     }
 
     @GUI::Layout::Spacer {}
diff --git a/Userland/Applications/Calendar/AddEventDialog.h b/Userland/Applications/Calendar/AddEventDialog.h
index 52871097e1..0240a1b29f 100644
--- a/Userland/Applications/Calendar/AddEventDialog.h
+++ b/Userland/Applications/Calendar/AddEventDialog.h
@@ -31,25 +31,6 @@ private:
 
     ErrorOr<void> add_event_to_calendar();
 
-    class MeridiemListModel final : public GUI::Model {
-    public:
-        enum Column {
-            Meridiem,
-            __Count,
-        };
-
-        static NonnullRefPtr<MeridiemListModel> create() { return adopt_ref(*new MeridiemListModel); }
-        virtual ~MeridiemListModel() override = default;
-
-        virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override;
-        virtual int column_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override { return Column::__Count; }
-        virtual ErrorOr<String> column_name(int) const override;
-        virtual GUI::Variant data(const GUI::ModelIndex&, GUI::ModelRole) const override;
-
-    private:
-        MeridiemListModel() = default;
-    };
-
     Core::DateTime m_start_date_time;
     Core::DateTime m_end_date_time;
     EventManager& m_event_manager;