diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index de6be79..e2f9d7a 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1,2 +1,19 @@
 module ApplicationHelper
+  def humanise_duration(duration)
+    raise ArgumentError, "Duration must be a number" unless duration.is_a? ActiveSupport::Duration
+
+    seconds = duration.in_seconds
+    minutes = seconds / 60
+    hours = minutes / 60
+
+    remaining_minutes = minutes % 60
+
+    if hours > 0
+      "#{hours.floor}h #{remaining_minutes.floor}m"
+    elsif minutes > 0
+      "#{remaining_minutes.floor} minutes"
+    else
+      "#{seconds}s"
+    end
+  end
 end
diff --git a/app/models/lecture.rb b/app/models/lecture.rb
index f761a67..92e6a9a 100644
--- a/app/models/lecture.rb
+++ b/app/models/lecture.rb
@@ -25,6 +25,10 @@ class Lecture < ApplicationRecord
     tracked_time_entries.preparation.sum(&:duration).seconds
   end
 
+  def total_overall_time
+    tracked_time_entries.sum(&:duration).seconds
+  end
+
   def total_attendance_time
     tracked_time_entries.where(kind: [:concurrent, :catchup]).sum(&:duration).seconds
   end
diff --git a/app/views/attendance_tracker/index.html.erb b/app/views/attendance_tracker/index.html.erb
index d0b9079..c841344 100644
--- a/app/views/attendance_tracker/index.html.erb
+++ b/app/views/attendance_tracker/index.html.erb
@@ -22,7 +22,19 @@
               <tbody class="divide-y divide-gray-200 bg-white">
               <% course.lectures.order(:start_time).group_by { |lecture| lecture.week_number }.each do |(week_number, lectures)| %>
                 <tr class="border-t border-gray-200">
-                  <th colspan="4" scope="colgroup" class="bg-gray-50 py-2 pl-4 pr-3 text-left text-sm font-semibold text-gray-900 sm:pl-6">Week <%= week_number %></th>
+                  <th colspan="5" scope="colgroup" class="bg-gray-50 py-2 pl-4 pr-3 text-left text-sm font-semibold text-gray-900 sm:pl-6">
+                    <div class="flex flex-row justify-between">
+                      <div class="">
+                        Week <%= week_number %>
+                      </div>
+
+                      <div>
+                        <%# TODO: Improve this figure, atm it is for lectures in week, not time spent in week (ie
+                             prepping for lecture next week will count in next week not current week) %>
+                        (Total <%= humanise_duration(lectures.sum { |lecture| lecture.total_overall_time }.seconds) %>)
+                      </div>
+                    </div>
+                  </th>
                 </tr>
 
                 <% lectures.reject(&:cancelled).each do |lecture| %>
@@ -72,17 +84,19 @@
                         </div>
 
                         <template data-popover-target="content">
-                          <div class="absolute p-1 w-max whitespace-normal break-words rounded-lg border border-blue-gray-50 bg-white   text-blue-gray-500 shadow-lg shadow-blue-gray-500/10 focus:outline-none" data-popover-target="card">
-                            <div>
-                              Preparation: <%= lecture.total_preparation_time.in_minutes.round %> minutes
+                          <% unless lecture.tracked_time_entries.empty? %>
+                            <div class="absolute p-1 w-max whitespace-normal break-words rounded-lg border border-blue-gray-50 bg-white   text-blue-gray-500 shadow-lg shadow-blue-gray-500/10 focus:outline-none" data-popover-target="card">
+                              <div>
+                                Preparation: <%= humanise_duration(lecture.total_preparation_time) %>
+                              </div>
+                              <div>
+                                In lecture: <%= humanise_duration(lecture.total_attendance_time) %>
+                              </div>
+                              <div>
+                                Review: <%= humanise_duration(lecture.total_review_time) %>
+                              </div>
                             </div>
-                            <div>
-                              In lecture: <%= lecture.total_attendance_time.in_minutes.round %> minutes
-                            </div>
-                            <div>
-                              Review: <%= lecture.total_review_time.in_minutes.round %> minutes
-                            </div>
-                          </div>
+                          <% end %>
                         </template>
                       </td>