diff --git a/app/Controller/Activity.php b/app/Controller/Activity.php
index 2276b3b88..234e4be46 100644
--- a/app/Controller/Activity.php
+++ b/app/Controller/Activity.php
@@ -26,4 +26,20 @@ class Activity extends Base
             'title' => t('%s\'s activity', $project['name'])
         )));
     }
+
+    /**
+     * Display task activities
+     *
+     * @access public
+     */
+    public function task()
+    {
+        $task = $this->getTask();
+
+        $this->response->html($this->taskLayout('activity/task', array(
+            'title' => $task['title'],
+            'task' => $task,
+            'events' => $this->projectActivity->getTask($task['id']),
+        )));
+    }
 }
diff --git a/app/Controller/Task.php b/app/Controller/Task.php
index dc83f7b16..b6e4845f2 100644
--- a/app/Controller/Task.php
+++ b/app/Controller/Task.php
@@ -88,19 +88,20 @@ class Task extends Base
     }
 
     /**
-     * Display task activities
+     * Display task analytics
      *
      * @access public
      */
-    public function activites()
+    public function analytics()
     {
         $task = $this->getTask();
 
-        $this->response->html($this->taskLayout('task/activity', array(
+        $this->response->html($this->taskLayout('task/analytics', array(
             'title' => $task['title'],
             'task' => $task,
-            'ajax' => $this->request->isAjax(),
-            'events' => $this->projectActivity->getTask($task['id']),
+            'lead_time' => $this->taskAnalytic->getLeadTime($task),
+            'cycle_time' => $this->taskAnalytic->getCycleTime($task),
+            'column_averages' => $this->taskAnalytic->getAverageTimeByColumn($task),
         )));
     }
 
diff --git a/app/Core/Helper.php b/app/Core/Helper.php
index e4f225b01..64eaed238 100644
--- a/app/Core/Helper.php
+++ b/app/Core/Helper.php
@@ -12,7 +12,7 @@ use Pimple\Container;
  *
  * @property \Helper\App        $app
  * @property \Helper\Asset      $asset
- * @property \Helper\Datetime   $datetime
+ * @property \Helper\Dt         $dt
  * @property \Helper\File       $file
  * @property \Helper\Form       $form
  * @property \Helper\Subtask    $subtask
diff --git a/app/Helper/Datetime.php b/app/Helper/Dt.php
similarity index 83%
rename from app/Helper/Datetime.php
rename to app/Helper/Dt.php
index 74ea9bdd7..be595605e 100644
--- a/app/Helper/Datetime.php
+++ b/app/Helper/Dt.php
@@ -2,14 +2,30 @@
 
 namespace Helper;
 
+use DateTime;
+
 /**
  * DateTime helpers
  *
  * @package helper
  * @author  Frederic Guillot
  */
-class Datetime extends \Core\Base
+class Dt extends \Core\Base
 {
+    /**
+     * Get duration in seconds into human format
+     *
+     * @access public
+     * @param  integer  $seconds
+     * @return string
+     */
+    public function duration($seconds)
+    {
+        $dtF = new DateTime("@0");
+        $dtT = new DateTime("@$seconds");
+        return $dtF->diff($dtT)->format('%a days, %h hours, %i minutes and %s seconds');
+    }
+
     /**
      * Get the age of an item in quasi human readable format.
      * It's in this format: <1h , NNh, NNd
diff --git a/app/Model/TaskAnalytic.php b/app/Model/TaskAnalytic.php
new file mode 100644
index 000000000..41579c7df
--- /dev/null
+++ b/app/Model/TaskAnalytic.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace Model;
+
+/**
+ * Task Analytic
+ *
+ * @package  model
+ * @author   Frederic Guillot
+ */
+class TaskAnalytic extends Base
+{
+    /**
+     * Get the time between date_creation and date_completed or now if empty
+     *
+     * @access public
+     * @param  array   $task
+     * @return integer
+     */
+    public function getLeadTime(array $task)
+    {
+        return ($task['date_completed'] ?: time()) - $task['date_creation'];
+    }
+
+    /**
+     * Get the time between date_started and date_completed or now if empty
+     *
+     * @access public
+     * @param  array   $task
+     * @return integer
+     */
+    public function getCycleTime(array $task)
+    {
+        if (empty($task['date_started'])) {
+            return 0;
+        }
+
+        return ($task['date_completed'] ?: time()) - $task['date_started'];
+    }
+
+    /**
+     * Get the average time spent in each column
+     *
+     * @access public
+     * @param  array   $task
+     * @return array
+     */
+    public function getAverageTimeByColumn(array $task)
+    {
+        $result = array();
+        $columns = $this->board->getColumnsList($task['project_id']);
+        $averages = $this->transition->getAverageTimeSpentByTask($task['id']);
+
+        foreach ($columns as $column_id => $column_title) {
+
+            $time_spent = 0;
+
+            if (empty($averages) && $task['column_id'] == $column_id) {
+                $time_spent = time() - $task['date_creation'];
+            }
+            else {
+                $time_spent = isset($averages[$column_id]) ? $averages[$column_id] : 0;
+            }
+
+            $result[] = array(
+                'id' => $column_id,
+                'title' => $column_title,
+                'time_spent' => $time_spent,
+            );
+        }
+
+        return $result;
+    }
+}
diff --git a/app/Model/Transition.php b/app/Model/Transition.php
index cb759e4a4..959b6aca2 100644
--- a/app/Model/Transition.php
+++ b/app/Model/Transition.php
@@ -38,6 +38,22 @@ class Transition extends Base
         ));
     }
 
+    /**
+     * Get average time spent by task for each column
+     *
+     * @access public
+     * @param  integer  $task_id
+     * @return array
+     */
+    public function getAverageTimeSpentByTask($task_id)
+    {
+        return $this->db
+                    ->hashtable(self::TABLE)
+                    ->groupBy('src_column_id')
+                    ->eq('task_id', $task_id)
+                    ->getAll('src_column_id', 'SUM(time_spent) AS time_spent');
+    }
+
     /**
      * Get all transitions by task
      *
diff --git a/app/ServiceProvider/ClassProvider.php b/app/ServiceProvider/ClassProvider.php
index 1fa0d0ef1..609f58244 100644
--- a/app/ServiceProvider/ClassProvider.php
+++ b/app/ServiceProvider/ClassProvider.php
@@ -42,6 +42,7 @@ class ClassProvider implements ServiceProviderInterface
             'SubtaskTimeTracking',
             'Swimlane',
             'Task',
+            'TaskAnalytic',
             'TaskCreation',
             'TaskDuplication',
             'TaskExport',
diff --git a/app/Template/task/activity.php b/app/Template/activity/task.php
similarity index 100%
rename from app/Template/task/activity.php
rename to app/Template/activity/task.php
diff --git a/app/Template/board/task_private.php b/app/Template/board/task_private.php
index 87121f2c9..3f4010ea4 100644
--- a/app/Template/board/task_private.php
+++ b/app/Template/board/task_private.php
@@ -43,8 +43,8 @@
 
         <?php if ($task['is_active'] == 1): ?>
         <div class="task-board-days">
-            <span title="<?= t('Task age in days')?>" class="task-days-age"><?= $this->datetime->age($task['date_creation']) ?></span>
-            <span title="<?= t('Days in this column')?>" class="task-days-incolumn"><?= $this->datetime->age($task['date_moved']) ?></span>
+            <span title="<?= t('Task age in days')?>" class="task-days-age"><?= $this->dt->age($task['date_creation']) ?></span>
+            <span title="<?= t('Days in this column')?>" class="task-days-incolumn"><?= $this->dt->age($task['date_moved']) ?></span>
         </div>
         <?php else: ?>
             <div class="task-board-closed"><i class="fa fa-ban fa-fw"></i><?= t('Closed') ?></div>
diff --git a/app/Template/subtask/show.php b/app/Template/subtask/show.php
index b91e830f7..cc82a74eb 100644
--- a/app/Template/subtask/show.php
+++ b/app/Template/subtask/show.php
@@ -48,7 +48,7 @@
                         <?php if ($subtask['is_timer_started']): ?>
                             <i class="fa fa-pause"></i>
                             <?= $this->url->link(t('Stop timer'), 'timer', 'subtask', array('timer' => 'stop', 'project_id' => $task['project_id'], 'task_id' => $subtask['task_id'], 'subtask_id' => $subtask['id'])) ?>
-                            (<?= $this->datetime->age($subtask['timer_start_date']) ?>)
+                            (<?= $this->dt->age($subtask['timer_start_date']) ?>)
                         <?php else: ?>
                             <i class="fa fa-play-circle-o"></i>
                             <?= $this->url->link(t('Start timer'), 'timer', 'subtask', array('timer' => 'start', 'project_id' => $task['project_id'], 'task_id' => $subtask['task_id'], 'subtask_id' => $subtask['id'])) ?>
diff --git a/app/Template/task/analytics.php b/app/Template/task/analytics.php
new file mode 100644
index 000000000..dbee0e9cc
--- /dev/null
+++ b/app/Template/task/analytics.php
@@ -0,0 +1,32 @@
+<div class="page-header">
+    <h2><?= t('Analytics') ?></h2>
+</div>
+
+<div class="listing">
+    <ul>
+        <li><?= t('Lead time: ').'<strong>'.$this->dt->duration($lead_time) ?></strong></li>
+        <li><?= t('Cycle time: ').'<strong>'.$this->dt->duration($cycle_time) ?></strong></li>
+    </ul>
+</div>
+
+<h3><?= t('Average time spent for each column') ?></h3>
+<table class="table-stripped">
+    <tr>
+        <th><?= t('Column') ?></th>
+        <th><?= t('Average time spent') ?></th>
+    </tr>
+    <?php foreach ($column_averages as $column): ?>
+    <tr>
+        <td><?= $this->e($column['title']) ?></td>
+        <td><?= $this->dt->duration($column['time_spent']) ?></td>
+    </tr>
+    <?php endforeach ?>
+</table>
+
+<div class="alert alert-info">
+    <ul>
+        <li><?= t('The lead time is the time between the task creation and the completion.') ?></li>
+        <li><?= t('The cycle time is the time between the start date and the completion.') ?></li>
+        <li><?= t('If the task is not closed the current time is used.') ?></li>
+    </ul>
+</div>
\ No newline at end of file
diff --git a/app/Template/task/sidebar.php b/app/Template/task/sidebar.php
index bb137ac91..8b0f3c6e7 100644
--- a/app/Template/task/sidebar.php
+++ b/app/Template/task/sidebar.php
@@ -5,11 +5,14 @@
             <?= $this->url->link(t('Summary'), 'task', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
         </li>
         <li>
-            <?= $this->url->link(t('Activity stream'), 'task', 'activites', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
+            <?= $this->url->link(t('Activity stream'), 'activity', 'task', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
         </li>
         <li>
             <?= $this->url->link(t('Transitions'), 'task', 'transitions', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
         </li>
+        <li>
+            <?= $this->url->link(t('Analytics'), 'task', 'analytics', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
+        </li>
         <?php if ($task['time_estimated'] > 0 || $task['time_spent'] > 0): ?>
         <li>
             <?= $this->url->link(t('Time tracking'), 'task', 'timesheet', array('task_id' => $task['id'], 'project_id' => $task['project_id'])) ?>
diff --git a/app/Template/task/transitions.php b/app/Template/task/transitions.php
index 6455fd667..2ca2387f3 100644
--- a/app/Template/task/transitions.php
+++ b/app/Template/task/transitions.php
@@ -19,7 +19,7 @@
             <td><?= $this->e($transition['src_column']) ?></td>
             <td><?= $this->e($transition['dst_column']) ?></td>
             <td><?= $this->url->link($this->e($transition['name'] ?: $transition['username']), 'user', 'show', array('user_id' => $transition['user_id'])) ?></td>
-            <td><?= n(round($transition['time_spent'] / 3600, 2)).' '.t('hours') ?></td>
+            <td><?= $this->dt->duration($transition['time_spent']) ?></td>
         </tr>
         <?php endforeach ?>
     </table>
diff --git a/app/Template/timetable_day/index.php b/app/Template/timetable_day/index.php
index d2877816c..386ceec22 100644
--- a/app/Template/timetable_day/index.php
+++ b/app/Template/timetable_day/index.php
@@ -30,10 +30,10 @@
     <?= $this->form->csrf() ?>
 
     <?= $this->form->label(t('Start time'), 'start') ?>
-    <?= $this->form->select('start', $this->datetime->getDayHours(), $values, $errors) ?>
+    <?= $this->form->select('start', $this->dt->getDayHours(), $values, $errors) ?>
 
     <?= $this->form->label(t('End time'), 'end') ?>
-    <?= $this->form->select('end', $this->datetime->getDayHours(), $values, $errors) ?>
+    <?= $this->form->select('end', $this->dt->getDayHours(), $values, $errors) ?>
 
     <div class="form-actions">
         <input type="submit" value="<?= t('Save') ?>" class="btn btn-blue"/>
diff --git a/app/Template/timetable_extra/index.php b/app/Template/timetable_extra/index.php
index d3224ae68..e9982335f 100644
--- a/app/Template/timetable_extra/index.php
+++ b/app/Template/timetable_extra/index.php
@@ -42,10 +42,10 @@
     <?= $this->form->checkbox('all_day', t('All day'), 1) ?>
 
     <?= $this->form->label(t('Start time'), 'start') ?>
-    <?= $this->form->select('start', $this->datetime->getDayHours(), $values, $errors) ?>
+    <?= $this->form->select('start', $this->dt->getDayHours(), $values, $errors) ?>
 
     <?= $this->form->label(t('End time'), 'end') ?>
-    <?= $this->form->select('end', $this->datetime->getDayHours(), $values, $errors) ?>
+    <?= $this->form->select('end', $this->dt->getDayHours(), $values, $errors) ?>
 
     <?= $this->form->label(t('Comment'), 'comment') ?>
     <?= $this->form->text('comment', $values, $errors) ?>
diff --git a/app/Template/timetable_off/index.php b/app/Template/timetable_off/index.php
index 75e02dbd7..615c2b8d1 100644
--- a/app/Template/timetable_off/index.php
+++ b/app/Template/timetable_off/index.php
@@ -42,10 +42,10 @@
     <?= $this->form->checkbox('all_day', t('All day'), 1) ?>
 
     <?= $this->form->label(t('Start time'), 'start') ?>
-    <?= $this->form->select('start', $this->datetime->getDayHours(), $values, $errors) ?>
+    <?= $this->form->select('start', $this->dt->getDayHours(), $values, $errors) ?>
 
     <?= $this->form->label(t('End time'), 'end') ?>
-    <?= $this->form->select('end', $this->datetime->getDayHours(), $values, $errors) ?>
+    <?= $this->form->select('end', $this->dt->getDayHours(), $values, $errors) ?>
 
     <?= $this->form->label(t('Comment'), 'comment') ?>
     <?= $this->form->text('comment', $values, $errors) ?>
diff --git a/app/Template/timetable_week/index.php b/app/Template/timetable_week/index.php
index 552e93023..d58c6cfbf 100644
--- a/app/Template/timetable_week/index.php
+++ b/app/Template/timetable_week/index.php
@@ -13,7 +13,7 @@
     </tr>
     <?php foreach ($timetable as $slot): ?>
     <tr>
-        <td><?= $this->datetime->getWeekDay($slot['day']) ?></td>
+        <td><?= $this->dt->getWeekDay($slot['day']) ?></td>
         <td><?= $slot['start'] ?></td>
         <td><?= $slot['end'] ?></td>
         <td>
@@ -32,13 +32,13 @@
     <?= $this->form->csrf() ?>
 
     <?= $this->form->label(t('Day'), 'day') ?>
-    <?= $this->form->select('day', $this->datetime->getWeekDays(), $values, $errors) ?>
+    <?= $this->form->select('day', $this->dt->getWeekDays(), $values, $errors) ?>
 
     <?= $this->form->label(t('Start time'), 'start') ?>
-    <?= $this->form->select('start', $this->datetime->getDayHours(), $values, $errors) ?>
+    <?= $this->form->select('start', $this->dt->getDayHours(), $values, $errors) ?>
 
     <?= $this->form->label(t('End time'), 'end') ?>
-    <?= $this->form->select('end', $this->datetime->getDayHours(), $values, $errors) ?>
+    <?= $this->form->select('end', $this->dt->getDayHours(), $values, $errors) ?>
 
     <div class="form-actions">
         <input type="submit" value="<?= t('Save') ?>" class="btn btn-blue"/>
diff --git a/tests/units/DatetimeHelperTest.php b/tests/units/DatetimeHelperTest.php
index 216cf34c1..21d452dd2 100644
--- a/tests/units/DatetimeHelperTest.php
+++ b/tests/units/DatetimeHelperTest.php
@@ -2,13 +2,13 @@
 
 require_once __DIR__.'/Base.php';
 
-use Helper\Datetime;
+use Helper\Dt;
 
 class DatetimeHelperTest extends Base
 {
     public function testAge()
     {
-        $h = new Datetime($this->container);
+        $h = new Dt($this->container);
 
         $this->assertEquals('&lt;15m', $h->age(0, 30));
         $this->assertEquals('&lt;30m', $h->age(0, 1000));
@@ -20,7 +20,7 @@ class DatetimeHelperTest extends Base
 
     public function testGetDayHours()
     {
-        $h = new Datetime($this->container);
+        $h = new Dt($this->container);
 
         $slots = $h->getDayHours();
 
@@ -36,7 +36,7 @@ class DatetimeHelperTest extends Base
 
     public function testGetWeekDays()
     {
-        $h = new Datetime($this->container);
+        $h = new Dt($this->container);
 
         $slots = $h->getWeekDays();
 
@@ -48,7 +48,7 @@ class DatetimeHelperTest extends Base
 
     public function testGetWeekDay()
     {
-        $h = new Datetime($this->container);
+        $h = new Dt($this->container);
 
         $this->assertEquals('Monday', $h->getWeekDay(1));
         $this->assertEquals('Sunday', $h->getWeekDay(7));