diff --git a/Gemfile b/Gemfile
index b4aca7f58..3d4171794 100644
--- a/Gemfile
+++ b/Gemfile
@@ -41,7 +41,7 @@ gem 'rack-attack'
 # JS datetime library, requirement of datetime picker
 gem 'momentjs-rails', '~> 2.17.1'
 # JS datetime picker
-gem 'bootstrap3-datetimepicker-rails', '~> 4.15.35'
+gem 'bootstrap3-datetimepicker-rails', '~> 4.17'
 # Select elements for Bootstrap
 gem 'bootstrap-select-rails', '~> 1.12.4'
 gem 'uglifier', '>= 1.3.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index e369124f7..ef655a677 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -156,7 +156,7 @@ GEM
       autoprefixer-rails (>= 5.2.1)
       sassc (>= 2.0.0)
     bootstrap-select-rails (1.12.4)
-    bootstrap3-datetimepicker-rails (4.15.35)
+    bootstrap3-datetimepicker-rails (4.17.47)
       momentjs-rails (>= 2.8.1)
     bootstrap_form (2.7.0)
     builder (3.2.3)
@@ -606,7 +606,7 @@ DEPENDENCIES
   bootsnap
   bootstrap-sass (~> 3.4.1)
   bootstrap-select-rails (~> 1.12.4)
-  bootstrap3-datetimepicker-rails (~> 4.15.35)
+  bootstrap3-datetimepicker-rails (~> 4.17)
   bootstrap_form (~> 2.7.0)
   bullet
   byebug
diff --git a/app/assets/javascripts/my_modules.js b/app/assets/javascripts/my_modules.js
index b9ab0a806..2616c2480 100644
--- a/app/assets/javascripts/my_modules.js
+++ b/app/assets/javascripts/my_modules.js
@@ -1,28 +1,24 @@
 /* global I18n dropdownSelector */
 /* eslint-disable no-use-before-define */
 
+function updateDueDate() {
+  let updateUrl = $('.due-date-container').data('update-url');
+  let val = $('#calendar-due-date').val();
+  $.ajax({
+    url: updateUrl,
+    type: 'PATCH',
+    dataType: 'json',
+    data: { my_module: { due_date: val } },
+    success: function(result) {
+      $('#due-date-label-container').html(result.due_date_label);
+    }
+  });
+}
+
 // Bind ajax for editing due dates
 function initDueDatePicker() {
-  function updateDueDate(val) {
-    var updateUrl = $('.due-date-container').data('update-url');
-    $.ajax({
-      url: updateUrl,
-      type: 'PATCH',
-      dataType: 'json',
-      data: { my_module: { due_date: val } },
-      success: function(result) {
-        $('.due-date-container').html($(result.module_header_due_date_label));
-        initDueDatePicker();
-      }
-    });
-  }
-
   $('#calendar-due-date').on('dp.change', function() {
-    updateDueDate($('#calendar-due-date').val());
-  });
-
-  $('.flex-block.date-block .clear-date').off('click').on('click', function() {
-    updateDueDate(null);
+    updateDueDate();
   });
 }
 
@@ -194,7 +190,7 @@ function applyTaskCompletedCallBack() {
             button.find('.btn')
               .removeClass('btn-default').addClass('btn-primary');
           }
-          $('.due-date-container').html(data.module_header_due_date_label);
+          $('.due-date-container').html(data.module_header_due_date);
           initDueDatePicker();
           $('.task-state-label').html(data.module_state_label);
           button.find('button').replaceWith(data.new_btn);
diff --git a/app/assets/javascripts/projects/canvas.js.erb b/app/assets/javascripts/projects/canvas.js.erb
index 902d4b7a3..a9ed88fda 100644
--- a/app/assets/javascripts/projects/canvas.js.erb
+++ b/app/assets/javascripts/projects/canvas.js.erb
@@ -750,7 +750,7 @@ function bindEditDueDateAjax() {
     editDueDateModalBody.find("form")
     .on("ajax:success", function(ev2, data2, status2) {
       // Update module's due date
-      dueDateLink.html(data2.due_date_label);
+      dueDateLink.html(data2.card_due_date_label);
 
       // Update module's classes if needed
       moduleEl
diff --git a/app/assets/javascripts/protocols/steps.js.erb b/app/assets/javascripts/protocols/steps.js.erb
index 119f84164..13f92463b 100644
--- a/app/assets/javascripts/protocols/steps.js.erb
+++ b/app/assets/javascripts/protocols/steps.js.erb
@@ -41,7 +41,7 @@
             task_button.attr('data-action', 'uncomplete-task');
             task_button.find('.btn')
               .removeClass('btn-toggle').addClass('btn-default');
-            $('.task-due-date').html(data.module_header_due_date_label);
+            $('.task-due-date').html(data.module_header_due_date);
             $('.task-state-label').html(data.module_state_label);
             task_button
               .find('button')
diff --git a/app/assets/javascripts/sitewide/date_time_picker.js b/app/assets/javascripts/sitewide/date_time_picker.js
new file mode 100644
index 000000000..ce64dddb3
--- /dev/null
+++ b/app/assets/javascripts/sitewide/date_time_picker.js
@@ -0,0 +1,24 @@
+(function() {
+  'use strict';
+
+  $(document).on('click', '[data-toggle="date-time-picker"]', function(ev) {
+    ev.preventDefault();
+    ev.stopPropagation();
+
+    let dt = $(this);
+
+    if (dt.data('DateTimePicker')) {
+      dt.data('DateTimePicker').destroy();
+    }
+
+    dt.datetimepicker({ ignoreReadonly: true });
+    dt.data('DateTimePicker').show();
+  });
+
+  $(document).on('click', '[data-toggle="clear-date-time-picker"]', function() {
+    let dt = $(`#${$(this).data('target')}`);
+    if (!dt.data('DateTimePicker')) dt.datetimepicker({ useCurrent: false });
+    dt.data('DateTimePicker').clear();
+    dt.val('');
+  });
+}());
diff --git a/app/assets/stylesheets/my_modules/protocols/index.scss b/app/assets/stylesheets/my_modules/protocols/index.scss
index d5a76bf33..ad8fd4e25 100644
--- a/app/assets/stylesheets/my_modules/protocols/index.scss
+++ b/app/assets/stylesheets/my_modules/protocols/index.scss
@@ -63,15 +63,15 @@
         padding: 0 3px;
         position: relative;
 
-        &.alert-green {
+        .alert-green {
           color: $brand-success;
         }
 
-        &.alert-yellow {
+        .alert-yellow {
           color: $brand-warning;
         }
 
-        &.alert-red {
+        .alert-red {
           color: $brand-danger;
         }
 
diff --git a/app/controllers/my_modules_controller.rb b/app/controllers/my_modules_controller.rb
index 9398f53b2..70adfbabe 100644
--- a/app/controllers/my_modules_controller.rb
+++ b/app/controllers/my_modules_controller.rb
@@ -145,10 +145,8 @@ class MyModulesController < ApplicationController
   def update
     update_params = my_module_params
     if update_params[:due_date].present?
-      update_params[:due_date] = Time.strptime(
-        update_params[:due_date].delete('-'),
-        I18n.backend.date_format.dup.delete('-')
-      )
+      update_params[:due_date] =
+        Time.zone.strptime(update_params[:due_date], I18n.backend.date_format.dup.gsub(/%-/, '%') + ' %H:%M')
     end
     @my_module.assign_attributes(update_params)
     @my_module.last_modified_by = current_user
@@ -211,15 +209,19 @@ class MyModulesController < ApplicationController
           render json: {
             status: :ok,
             due_date_label: render_to_string(
-              partial: "my_modules/due_date_label.html.erb",
+              partial: 'my_modules/due_date_label.html.erb',
               locals: { my_module: @my_module }
             ),
-            module_header_due_date_label: render_to_string(
-              partial: "my_modules/module_header_due_date_label.html.erb",
+            card_due_date_label: render_to_string(
+              partial: 'my_modules/card_due_date_label.html.erb',
+              locals: { my_module: @my_module }
+            ),
+            module_header_due_date: render_to_string(
+              partial: 'my_modules/module_header_due_date.html.erb',
               locals: { my_module: @my_module }
             ),
             description_label: render_to_string(
-              partial: "my_modules/description_label.html.erb",
+              partial: 'my_modules/description_label.html.erb',
               locals: { my_module: @my_module }
             ),
             alerts: alerts
@@ -577,8 +579,8 @@ class MyModulesController < ApplicationController
             render json: {
               new_btn: render_to_string(partial: new_btn_partial),
               completed: completed,
-              module_header_due_date_label: render_to_string(
-                partial: 'my_modules/module_header_due_date_label.html.erb',
+              module_header_due_date: render_to_string(
+                partial: 'my_modules/module_header_due_date.html.erb',
                 locals: { my_module: @my_module }
               ),
               module_state_label: render_to_string(
@@ -605,8 +607,8 @@ class MyModulesController < ApplicationController
         format.json do
             render json: {
               task_button_title: t('my_modules.buttons.uncomplete'),
-              module_header_due_date_label: render_to_string(
-                partial: 'my_modules/module_header_due_date_label.html.erb',
+              module_header_due_date: render_to_string(
+                partial: 'my_modules/module_header_due_date.html.erb',
                 locals: { my_module: @my_module }
               ),
               module_state_label: render_to_string(
diff --git a/app/helpers/bootstrap_form_helper.rb b/app/helpers/bootstrap_form_helper.rb
index c7479f58f..c09ed7ac3 100644
--- a/app/helpers/bootstrap_form_helper.rb
+++ b/app/helpers/bootstrap_form_helper.rb
@@ -22,9 +22,10 @@ module BootstrapFormHelper
     def datetime_picker(name, options = {})
       id = "#{@object_name}_#{name.to_s}"
       input_name = "#{@object_name}[#{name.to_s}]"
-      timestamp = @object[name] ? "#{@object[name].to_i}000" : ""
+      date_format = I18n.backend.date_format.dup
+      value = options[:value] ? options[:value].strftime(date_format + ' %H:%M') : ''
       js_locale = I18n.locale.to_s
-      js_format = I18n.backend.date_format.dup
+      js_format = date_format
       js_format.gsub!(/%-d/, 'D')
       js_format.gsub!(/%d/, 'DD')
       js_format.gsub!(/%-m/, 'M')
@@ -32,36 +33,27 @@ module BootstrapFormHelper
       js_format.gsub!(/%b/, 'MMM')
       js_format.gsub!(/%B/, 'MMMM')
       js_format.gsub!('%Y', 'YYYY')
+      js_format << ' HH:mm' if options[:time] == true
 
-      label = name.to_s.humanize
-      if options[:label] then
-        label = options[:label]
+      label = options[:label] || name.to_s.humanize
+
+      style = options[:style] ? "style='#{options[:style]}'" : ''
+
+      res = "<div class='form-group' #{style}><label class='control-label required' for='#{id}'>#{label}</label>" \
+            "<div class='container' style='padding-left: 0; margin-left: 0;'><div class='row'><div class='col-sm-6'>"
+
+      res << "<div class='input-group date'>" if options[:clear]
+
+      res << "<input type='datetime' class='form-control' name='#{input_name}' id='#{id}' "\
+             "readonly value='#{value}' data-toggle='date-time-picker' data-date-format='#{js_format}' " \
+             "data-date-locale='#{js_locale}' data-date-show-today-button='#{options[:today].present?}'/>"
+
+      if options[:clear]
+        res << "<span class='input-group-addon' data-toggle='clear-date-time-picker' data-target='#{id}'>" \
+               "<i class='fas fa-times'></i></span></div>"
       end
 
-      styleStr = ""
-      if options[:style] then
-        styleStr = "style='#{options[:style]}'"
-      end
-
-      jsOpts = ""
-      if options[:today] then
-        jsOpts << "showTodayButton: true, "
-      end
-
-      res = ""
-      res << "<div class='form-group' #{styleStr}><label class='control-label required' for='#{id}'>#{label}</label><div class='container' style='padding-left: 0; margin-left: 0;'><div class='row'><div class='col-sm-6'><div class='form-group'>"
-      if options[:clear] then
-        res << "<div class='input-group date'>"
-      end
-      res << "<input type='datetime' class='form-control' name='#{input_name}' id='#{id}' readonly data-ts='#{timestamp}' />"
-      if options[:clear] then
-        res << "<span class='input-group-addon' id='#{id}_clear'><span class='fas fa-times'></span></span></div>"
-      end
-      res << "</div></div></div></div><script type='text/javascript'>$(function () { var dt = $('##{id}'); dt.datetimepicker({ #{jsOpts}ignoreReadonly: true, locale: '#{js_locale}', format: '#{js_format}' }); if (dt.length > 0 && dt.data['ts'] != '') { $('##{id}').data('DateTimePicker').date(moment($('##{id}').data('ts'))); }"
-      if options[:clear] then
-        res << "$('##{id}_clear').click(function() { $('##{id}').data('DateTimePicker').clear(); });"
-      end
-      res << "});</script></div>"
+      res << '</div></div></div></div>'
       res.html_safe
     end
 
diff --git a/app/models/my_module.rb b/app/models/my_module.rb
index c9c84c031..a4d01c6f5 100644
--- a/app/models/my_module.rb
+++ b/app/models/my_module.rb
@@ -271,14 +271,14 @@ class MyModule < ApplicationRecord
   end
 
   def is_overdue?(datetime = DateTime.current)
-    due_date.present? && datetime.utc > due_date.end_of_day.utc
+    due_date.present? && datetime.utc > due_date.utc
   end
 
   def overdue_for_days(datetime = DateTime.current)
-    if due_date.blank? || due_date.end_of_day.utc > datetime.utc
+    if due_date.blank? || due_date.utc > datetime.utc
       0
     else
-      ((datetime.utc.to_i - due_date.end_of_day.utc.to_i) / 1.day.to_f).ceil
+      ((datetime.utc.to_i - due_date.utc.to_i) / 1.day.to_f).ceil
     end
   end
 
@@ -288,8 +288,8 @@ class MyModule < ApplicationRecord
 
   def is_due_in?(datetime, diff)
     due_date.present? &&
-      datetime.utc < due_date.end_of_day.utc &&
-      datetime.utc > (due_date.end_of_day.utc - diff)
+      datetime.utc < due_date.utc &&
+      datetime.utc > (due_date.utc - diff)
   end
 
   def space_taken
diff --git a/app/views/canvas/full_zoom/_my_module.html.erb b/app/views/canvas/full_zoom/_my_module.html.erb
index 5fca43646..1ff3cfe9f 100644
--- a/app/views/canvas/full_zoom/_my_module.html.erb
+++ b/app/views/canvas/full_zoom/_my_module.html.erb
@@ -29,17 +29,17 @@
   </div>
 
   <div class="panel-body">
-    <% if can_manage_module?(my_module) %>
+    <% if !my_module.completed? && can_manage_module?(my_module) %>
       <%= link_to due_date_my_module_path(my_module, format: :json), remote: true,
                   class: "due-date-link due-date-refresh help_tooltips",
                   data: {
                     tooltiplink: I18n.t('tooltips.link.task.due_date'),
                     tooltipcontent: I18n.t('tooltips.text.task.due_date')
                   } do %>
-        <%= render partial: "my_modules/due_date_label.html.erb", locals: { my_module: my_module } %>
+        <%= render partial: "my_modules/card_due_date_label.html.erb", locals: { my_module: my_module, format: :full_date } %>
       <% end %>
     <% else %>
-      <%= render partial: "my_modules/due_date_label.html.erb", locals: { my_module: my_module } %>
+      <%= render partial: "my_modules/card_due_date_label.html.erb", locals: { my_module: my_module, format: :full_date } %>
     <% end %>
   </div>
 
diff --git a/app/views/my_modules/_card_due_date_label.html.erb b/app/views/my_modules/_card_due_date_label.html.erb
new file mode 100644
index 000000000..4f3542788
--- /dev/null
+++ b/app/views/my_modules/_card_due_date_label.html.erb
@@ -0,0 +1,29 @@
+<% if my_module.completed? %>
+  <%= t("my_modules.states.completed") %>
+  <span class="due-date-label">
+    <%= l(my_module.completed_on.utc, format: :full_date) %>
+    <span class="fas fa-check"></span>
+  </span>
+<% elsif my_module.is_one_day_prior? %>
+  <%= t("my_modules.states.due_soon") %>
+  <span class="due-date-label">
+    <%=l my_module.due_date.utc, format: :full_date %>
+    <span class="fas fa-exclamation-triangle"></span>
+  </span>
+<% elsif my_module.is_overdue? %>
+  <%= t("my_modules.states.overdue") %>
+  <span class="due-date-label">
+    <%=l my_module.due_date.utc, format: :full_date %>
+    <span class="fas fa-exclamation-triangle"></span>
+  </span>
+<% elsif my_module.due_date %>
+  <%= t("experiments.canvas.full_zoom.due_date") %>
+  <span class="due-date-label">
+      <%=l my_module.due_date.utc, format: :full_date %>
+  </span>
+<% else %>
+  <%= t("experiments.canvas.full_zoom.due_date") %>
+  <span class="due-date-label">
+    <em><%=t "experiments.canvas.full_zoom.no_due_date" %></em>
+  </span>
+<% end %>
diff --git a/app/views/my_modules/_due_date.html.erb b/app/views/my_modules/_due_date.html.erb
index 50db90b39..ddc78b7e8 100644
--- a/app/views/my_modules/_due_date.html.erb
+++ b/app/views/my_modules/_due_date.html.erb
@@ -1,3 +1,7 @@
 <%= bootstrap_form_for @my_module, url: my_module_path(@my_module, format: :json), remote: :true do |f| %>
-  <%= f.datetime_picker :due_date, label: t("my_modules.due_date.label"), clear: true %>
+  <%= f.datetime_picker :due_date,
+                        value: @my_module.due_date,
+                        label: t('my_modules.due_date.label'),
+                        clear: true,
+                        time: true %>
 <% end %>
diff --git a/app/views/my_modules/_due_date_label.html.erb b/app/views/my_modules/_due_date_label.html.erb
index 9d1328b4c..01bd84101 100644
--- a/app/views/my_modules/_due_date_label.html.erb
+++ b/app/views/my_modules/_due_date_label.html.erb
@@ -1,29 +1,19 @@
-<% if my_module.completed? %>
-  <%= t("my_modules.states.completed") %>
-  <span class="due-date-label">
-    <%= l(my_module.completed_on.utc, format: :full_date) %>
-    <span class="fas fa-check"></span>
-  </span>
-<% elsif my_module.is_one_day_prior? %>
-  <%= t("my_modules.states.due_soon") %>
-  <span class="due-date-label">
-    <%=l my_module.due_date.utc, format: :full_date %>
-    <span class="fas fa-exclamation-triangle"></span>
-  </span>
-<% elsif my_module.is_overdue? %>
-  <%= t("my_modules.states.overdue") %>
-  <span class="due-date-label">
-    <%=l my_module.due_date.utc, format: :full_date %>
-    <span class="fas fa-exclamation-triangle"></span>
-  </span>
-<% elsif my_module.due_date %>
-  <%= t("experiments.canvas.full_zoom.due_date") %>
-  <span class="due-date-label">
-      <%=l my_module.due_date.utc, format: :full_date %>
-  </span>
-<% else %>
-  <%= t("experiments.canvas.full_zoom.due_date") %>
-  <span class="due-date-label">
-    <em><%=t "experiments.canvas.full_zoom.no_due_date" %></em>
-  </span>
-<% end %>
\ No newline at end of file
+<span class="due-date-label <%= get_task_alert_color(my_module) %>">
+  <% if my_module.completed? %>
+    <%= t('my_modules.states.completed') %>
+      <%= l(my_module.completed_on, format: :full) %>
+      <span class="fas fa-check"></span>
+  <% elsif my_module.is_one_day_prior? %>
+    <%= t('my_modules.states.due_soon') %>
+      <%= l(my_module.due_date, format: :full) %>
+      <span class="fas fa-exclamation-triangle"></span>
+  <% elsif my_module.is_overdue? %>
+    <%= t('my_modules.states.overdue') %>
+      <%= l(my_module.due_date, format: :full) %>
+      <span class="fas fa-exclamation-triangle"></span>
+  <% elsif my_module.due_date %>
+      <%= l(my_module.due_date, format: :full) %>
+  <% else %>
+    <em><%= t('experiments.canvas.full_zoom.no_due_date') %></em>
+  <% end %>
+</span>
diff --git a/app/views/my_modules/_module_header.html.erb b/app/views/my_modules/_module_header.html.erb
index dd2f0b411..29ce458c9 100644
--- a/app/views/my_modules/_module_header.html.erb
+++ b/app/views/my_modules/_module_header.html.erb
@@ -6,12 +6,12 @@
     </div>
     <strong><%= l(@my_module.created_at, format: :full) %></strong>
   </div>
-  
+
   <div class="flex-block date-block" >
     <span class="fas block-icon fa-calendar-alt"></span>
     <span class="hidden-xs hidden-sm  hidden-md"><%=t "my_modules.module_header.due_date" %></span>
     <div class="due-date-container" data-update-url="<%= my_module_path(@my_module, format: :json) %>">
-      <%= render partial: "module_header_due_date_label.html.erb",
+      <%= render partial: "module_header_due_date.html.erb",
         locals: { my_module: @my_module } %>
     </div>
   </div>
diff --git a/app/views/my_modules/_module_header_due_date.html.erb b/app/views/my_modules/_module_header_due_date.html.erb
new file mode 100644
index 000000000..39c5c5199
--- /dev/null
+++ b/app/views/my_modules/_module_header_due_date.html.erb
@@ -0,0 +1,33 @@
+<span class="date-text" data-editable="<%= can_manage_module?(my_module) %>">
+  <span id="due-date-label-container" class="view-block">
+    <%= render partial: "due_date_label.html.erb" , locals: { my_module: my_module } %>
+  </span>
+  <% if can_manage_module?(my_module) %>
+    <div class="datetime-picker-container" id="due-date">
+      <%
+        js_format = I18n.backend.date_format.dup
+          js_format.gsub!(/%-d/, 'D')
+          js_format.gsub!(/%d/, 'DD')
+          js_format.gsub!(/%-m/, 'M')
+          js_format.gsub!(/%m/, 'MM')
+          js_format.gsub!(/%b/, 'MMM')
+          js_format.gsub!(/%B/, 'MMMM')
+          js_format.gsub!('%Y', 'YYYY')
+          js_format << ' HH:mm'
+      %>
+
+      <span class="fas fa-calendar-alt"></span>
+      <input id="calendar-due-date"
+             type="datetime"
+             data-toggle='date-time-picker'
+             class="form-control calendar-input"
+             readonly
+             placeholder="<%= t('experiments.canvas.full_zoom.no_due_date') %>"
+             data-date-format="<%= js_format %>"
+             data-date-locale="<%= I18n.locale %>"
+             data-date-use-current="false"
+             value="<%= my_module.due_date ? l(my_module.due_date, format: :full) : '' %>"/>
+    </div>
+    <span class="fas fa-times clear-date" data-toggle='clear-date-time-picker' data-target='calendar-due-date'></span>
+  <% end %>
+</span>
diff --git a/app/views/my_modules/_module_header_due_date_label.html.erb b/app/views/my_modules/_module_header_due_date_label.html.erb
deleted file mode 100644
index 528eb6836..000000000
--- a/app/views/my_modules/_module_header_due_date_label.html.erb
+++ /dev/null
@@ -1,29 +0,0 @@
-<% 
-if my_module.completed? 
-  date_class = "alert-green"
-elsif my_module.is_one_day_prior? 
-  date_class = "alert-yellow"
-  label = "(#{t('my_modules.states.due_soon')})"
-elsif my_module.is_overdue?
-  date_class = "alert-red"
-  label = "(#{t('my_modules.states.overdue')})"
-end
-%>
-<span class="date-text <%= date_class if my_module.due_date %>" data-editable="<%= can_manage_module?(my_module) %>">
-  <span class="view-block">
-    <%= my_module.due_date ? l(my_module.due_date.utc, format: :full) : t("experiments.canvas.full_zoom.no_due_date") %>
-  </span>
-  <% if can_manage_module?(my_module) %>
-    <%= render partial: "global_activities/date_picker.html.erb", locals: { 
-                  id: 'due-date', 
-                  use_current: 'false',
-                  setDate: my_module.due_date ? l(my_module.due_date.utc, format: :full) : '',
-                  placeholder: t("experiments.canvas.full_zoom.no_due_date"), 
-                  label: nil 
-    } %>
-  <% end %>
-  <%= label %>
-  <% if my_module.due_date && can_manage_module?(my_module) %>
-    <span class="fas fa-times clear-date"></span>
-  <% end %>
-</span>
diff --git a/spec/controllers/my_modules_controller_spec.rb b/spec/controllers/my_modules_controller_spec.rb
index c41b8f3c0..cc89fbbbd 100644
--- a/spec/controllers/my_modules_controller_spec.rb
+++ b/spec/controllers/my_modules_controller_spec.rb
@@ -63,7 +63,7 @@ describe MyModulesController, type: :controller do
 
     context 'when setting due_date' do
       let(:params) do
-        { id: my_module.id, my_module: { due_date: '03/21/2019' } }
+        { id: my_module.id, my_module: { due_date: '03/21/2019 23:59' } }
       end
 
       it 'calls create activity for setting due date' do
@@ -102,7 +102,7 @@ describe MyModulesController, type: :controller do
 
     context 'when updating due_date' do
       let(:params) do
-        { id: my_module.id, my_module: { due_date: '02/21/2019' } }
+        { id: my_module.id, my_module: { due_date: '02/21/2019 23:59' } }
       end
       let(:my_module) do
         create :my_module, :with_due_date, experiment: experiment