diff --git a/Cool b/Cool
index 1b2ceb72..28b6ce6d 160000
--- a/Cool
+++ b/Cool
@@ -1 +1 @@
-Subproject commit 1b2ceb72790d6e335d6355fc47fe06dc3d887ad9
+Subproject commit 28b6ce6d49d0ecdc35d4d016ce4e306815530fcd
diff --git a/changelog.md b/changelog.md
index 184c9b07..1121f11c 100644
--- a/changelog.md
+++ b/changelog.md
@@ -22,7 +22,8 @@
 
 ## 🐣beta-18 WIP
 
-- ✨ The Output Window can now easily be turned fullscreen with F10
+- ✨ Every time input is now nicely formatted like "1h 27m 53s"
+- ✨ The Output Window can now easily be turned fullscreen with <kbd>F10</kbd>
 - ✨ When opening the Output Window, the aspect ratio automatically adapts to it
 - ✨ The Output Window now doesn't have a title bar
 - 🟦 Nodes: Added "MIDI Multi-Select with Transition" 
diff --git a/src/App.cpp b/src/App.cpp
index 57495104..ea69723a 100644
--- a/src/App.cpp
+++ b/src/App.cpp
@@ -131,7 +131,7 @@ void App::update()
         _project.current_clock(),
         _project.exporter.is_exporting() /* force_sync_time */
     );
-    Cool::hack_get_global_time_in_seconds() = _project.current_clock().time_in_seconds();
+    Cool::hack_get_global_time_in_seconds() = _project.current_clock().time();
     Cool::hack_get_is_exporting()           = _project.exporter.is_exporting();
     _project.audio.update(/*on_audio_data_changed = */ [&]() {
         _project.modules_graph->on_audio_changed();
@@ -158,7 +158,7 @@ void App::update()
     {
         _project.clock.update();
         render_view().update_size(_project.view_constraint); // TODO(JF) Integrate the notion of View Constraint inside the RenderView ? But that's maybe too much coupling
-        polaroid().render(_project.clock.time_in_seconds(), _project.clock.delta_time_in_seconds());
+        polaroid().render(_project.clock.time(), _project.clock.delta_time());
     }
     else
     {
@@ -215,7 +215,7 @@ Cool::Polaroid App::polaroid()
 {
     return {
         .render_target = render_view().render_target(), // TODO(Modules) Each module should have its own render target that it renders on. The views shouldn't have a render target, but receive the one of the top-most module by reference.
-        .render_fn     = [this](Cool::RenderTarget& render_target, float time, float delta_time) {
+        .render_fn     = [this](Cool::RenderTarget& render_target, Cool::Time time, Cool::Time delta_time) {
             if (_last_time != time)
             {
                 _last_time = time;
@@ -244,7 +244,7 @@ static void imgui_window_console()
 #endif
 }
 
-void App::render(Cool::RenderTarget& render_target, float time, float delta_time)
+void App::render(Cool::RenderTarget& render_target, Cool::Time time, Cool::Time delta_time)
 {
     _project.modules_graph->render(
         render_target,
@@ -337,8 +337,8 @@ void App::imgui_window_exporter()
 {
     _project.exporter.imgui_windows({
         .polaroid          = polaroid(),
-        .time              = _project.clock.time_in_seconds(),
-        .delta_time        = _project.clock.delta_time_in_seconds(),
+        .time              = _project.clock.time(),
+        .delta_time        = _project.clock.delta_time(),
         .time_speed        = _project.clock.time_speed().value(),
         .on_image_exported = [&](std::filesystem::path const& exported_image_path) {
             auto folder_path = exported_image_path;
@@ -374,7 +374,11 @@ void App::imgui_windows_only_when_inputs_are_allowed()
     ImGui::Begin(Cool::icon_fmt("Time", ICOMOON_STOPWATCH).c_str());
     Cool::ClockU::imgui_timeline(
         _project.clock,
-        /* extra_widgets = */ [&]() { the_ui.widget(_project.clock.time_speed()); },
+        /* extra_widgets = */ [&]() {
+            ImGui::SetNextItemWidth(70.f);
+            the_ui.widget(_project.clock.time_speed());
+            //
+        },
         /* on_time_reset = */ [&]() { on_time_reset(); }
     );
     ImGui::End();
@@ -397,7 +401,7 @@ void App::imgui_windows_only_when_inputs_are_allowed()
     // Share online
     _gallery_poster.imgui_window([&](img::Size size) {
         auto the_polaroid = polaroid();
-        the_polaroid.render(_project.clock.time_in_seconds(), _project.clock.delta_time_in_seconds(), size);
+        the_polaroid.render(_project.clock.time(), _project.clock.delta_time(), size);
         auto const image = the_polaroid.render_target.download_pixels();
         return img::save_png_to_string(image);
     });
diff --git a/src/App.h b/src/App.h
index 747c3e9e..aa7bbd06 100644
--- a/src/App.h
+++ b/src/App.h
@@ -58,7 +58,7 @@ class App : public Cool::IApp {
     auto nodes_library() const -> Cool::NodesLibrary const& { return _nodes_library_manager.library(); }
 
 private:
-    void render(Cool::RenderTarget& render_target, float time, float delta_time);
+    void render(Cool::RenderTarget& render_target, Cool::Time time, Cool::Time delta_time);
     void on_time_changed();
     void on_time_reset();
     auto render_view() -> Cool::RenderView&;
@@ -75,7 +75,7 @@ class App : public Cool::IApp {
     auto command_executor_without_history           () { return CommandExecutor_WithoutHistory_Ref{}; }
     auto command_executor_top_level                 () -> CommandExecutor_TopLevel { return CommandExecutor_TopLevel{command_executor_without_history(), _project.history, make_reversible_commands_context()}; }
     auto command_executor                           () { return CommandExecutor{command_execution_context()}; }
-    auto system_values                              (img::Size render_target_size, float time, float delta_time) { return SystemValues{render_target_size, time, delta_time, _project.camera_2D_manager.camera(), _project.camera_3D_manager.camera(), _project.audio}; }
+    auto system_values                              (img::Size render_target_size, Cool::Time time, Cool::Time delta_time) { return SystemValues{render_target_size, time, delta_time, _project.camera_2D_manager.camera(), _project.camera_3D_manager.camera(), _project.audio}; }
     auto ui                                         () { return Ui_Ref{command_executor()}; }
     // clang-format on
 
@@ -105,7 +105,7 @@ class App : public Cool::IApp {
     Project                              _project{};
     std::optional<std::filesystem::path> _current_project_path{};
     RecentlyOpened                       _recently_opened_projects{};
-    float                                _last_time{0.f};
+    Cool::Time                           _last_time{0s};
     bool                                 _wants_view_in_fullscreen{false}; // Boolean that anyone can set to true or false at any moment to toggle the view's fullscreen mode.
     bool                                 _view_was_in_fullscreen_last_frame{false};
     GalleryPoster                        _gallery_poster{};
diff --git a/src/Dependencies/SystemValues.h b/src/Dependencies/SystemValues.h
index f4f10257..3fcdebc3 100644
--- a/src/Dependencies/SystemValues.h
+++ b/src/Dependencies/SystemValues.h
@@ -8,8 +8,8 @@ namespace Lab {
 
 struct SystemValues {
     img::Size                                        render_target_size{};
-    float                                            time{};
-    float                                            delta_time{};
+    Cool::Time                                       time{};
+    Cool::Time                                       delta_time{};
     Cool::Camera2D                                   camera_2D{};
     Cool::Camera                                     camera_3D{};
     std::reference_wrapper<Cool::AudioManager const> audio_manager;
diff --git a/src/Module/ShaderBased/set_uniforms_for_shader_based_module.cpp b/src/Module/ShaderBased/set_uniforms_for_shader_based_module.cpp
index 26e7f9a9..81bce0c1 100644
--- a/src/Module/ShaderBased/set_uniforms_for_shader_based_module.cpp
+++ b/src/Module/ShaderBased/set_uniforms_for_shader_based_module.cpp
@@ -9,7 +9,6 @@
 #include "Nodes/Node.h"
 #include "Nodes/valid_input_name.h"
 
-
 namespace Lab {
 
 template<typename T>
@@ -102,12 +101,12 @@ auto set_uniforms_for_shader_based_module(
     shader.set_uniform("_height", system_values.height());
     shader.set_uniform("_last_midi_button_pressed", Cool::midi_manager().all_values().last_button_pressed());
     shader.set_uniform("_last_last_midi_button_pressed", Cool::midi_manager().all_values().last_last_button_pressed());
-    shader.set_uniform("_time_since_last_midi_button_pressed", Cool::midi_manager().all_values().time_since_last_button_pressed_in_seconds());
+    shader.set_uniform("_time_since_last_midi_button_pressed", Cool::midi_manager().all_values().time_since_last_button_pressed().as_seconds_float());
     shader.set_uniform("_aspect_ratio", system_values.aspect_ratio());
     shader.set_uniform("_inverse_aspect_ratio", system_values.inverse_aspect_ratio());
     shader.set_uniform_texture("mixbox_lut", Cool::TextureLibrary_Image::instance().get(Cool::Path::root() / "res/mixbox/mixbox_lut.png")->id());
-    shader.set_uniform("_time", system_values.time);
-    shader.set_uniform("_delta_time", system_values.delta_time);
+    shader.set_uniform("_time", system_values.time.as_seconds_float());
+    shader.set_uniform("_delta_time", system_values.delta_time.as_seconds_float());
 
     if (depends_on.audio_volume)
         shader.set_uniform("_audio_volume", system_values.audio_manager.get().volume());