diff --git a/enrol/locallib.php b/enrol/locallib.php
index 03e2f6c38ca..5e2a928f02d 100644
--- a/enrol/locallib.php
+++ b/enrol/locallib.php
@@ -1099,19 +1099,26 @@ class course_enrolment_manager {
      */
     private function prepare_user_for_display($user, $extrafields, $now) {
         $details = array(
-            'userid'    => $user->id,
-            'courseid'  => $this->get_course()->id,
-            'picture'   => new user_picture($user),
-            'firstname' => fullname($user, has_capability('moodle/site:viewfullnames', $this->get_context())),
-            'lastseen'  => get_string('never'),
+            'userid'           => $user->id,
+            'courseid'         => $this->get_course()->id,
+            'picture'          => new user_picture($user),
+            'firstname'        => fullname($user, has_capability('moodle/site:viewfullnames', $this->get_context())),
+            'lastseen'         => get_string('never'),
+            'lastcourseaccess' => get_string('never'),
         );
         foreach ($extrafields as $field) {
             $details[$field] = $user->{$field};
         }
 
+        // Last time user has accessed the site.
         if ($user->lastaccess) {
             $details['lastseen'] = format_time($now - $user->lastaccess);
         }
+
+        // Last time user has accessed the course.
+        if ($user->lastseen) {
+            $details['lastcourseaccess'] = format_time($now - $user->lastseen);
+        }
         return $details;
     }
 
diff --git a/enrol/users.php b/enrol/users.php
index b82ebe4bad5..49421ef0d50 100644
--- a/enrol/users.php
+++ b/enrol/users.php
@@ -186,7 +186,7 @@ foreach ($extrafields as $field) {
 
 $fields = array(
     'userdetails' => $userdetails,
-    'lastseen' => get_string('lastaccess'),
+    'lastcourseaccess' => get_string('lastcourseaccess'),
     'role' => get_string('roles', 'role'),
     'group' => get_string('groups', 'group'),
     'enrol' => get_string('enrolmentinstances', 'enrol')
@@ -196,7 +196,7 @@ $fields = array(
 if (!has_capability('moodle/course:viewhiddenuserfields', $context)) {
     $hiddenfields = array_flip(explode(',', $CFG->hiddenuserfields));
     if (isset($hiddenfields['lastaccess'])) {
-        unset($fields['lastseen']);
+        unset($fields['lastcourseaccess']);
     }
     if (isset($hiddenfields['groups'])) {
         unset($fields['group']);
diff --git a/lang/en/moodle.php b/lang/en/moodle.php
index be887038af4..3bb13f04230 100644
--- a/lang/en/moodle.php
+++ b/lang/en/moodle.php
@@ -779,6 +779,7 @@ $string['first'] = 'First';
 $string['firstaccess'] = 'First access';
 $string['firstname'] = 'First name';
 $string['firstnamephonetic'] = 'First name - phonetic';
+$string['firstsiteaccess'] = 'First access to site';
 $string['firsttime'] = 'Is this your first time here?';
 $string['folder'] = 'Folder';
 $string['folderclosed'] = 'Closed folder';
@@ -1007,12 +1008,14 @@ $string['language'] = 'Language';
 $string['languagegood'] = 'This language pack is up-to-date! :-)';
 $string['last'] = 'Last';
 $string['lastaccess'] = 'Last access';
+$string['lastcourseaccess'] = 'Last access to course';
 $string['lastedited'] = 'Last edited';
 $string['lastip'] = 'Last IP address';
 $string['lastlogin'] = 'Last login';
 $string['lastmodified'] = 'Last modified';
 $string['lastname'] = 'Surname';
 $string['lastnamephonetic'] = 'Surname - phonetic';
+$string['lastsiteaccess'] = 'Last access to site';
 $string['lastyear'] = 'Last year';
 $string['latestlanguagepack'] = 'Check for latest language pack on moodle.org';
 $string['layouttable'] = 'Layout table';
diff --git a/user/index.php b/user/index.php
index e0737b4f3e7..72e62fb4e89 100644
--- a/user/index.php
+++ b/user/index.php
@@ -363,7 +363,12 @@ if ($mode === MODE_BRIEF && !isset($hiddenfields['country'])) {
 }
 if (!isset($hiddenfields['lastaccess'])) {
     $tablecolumns[] = 'lastaccess';
-    $tableheaders[] = get_string('lastaccess');
+    if ($course->id == SITEID) {
+        // Exception case for viewing participants on site home.
+        $tableheaders[] = get_string('lastsiteaccess');
+    } else {
+        $tableheaders[] = get_string('lastcourseaccess');
+    }
 }
 
 if ($bulkoperations && $mode === MODE_USERDETAILS) {
@@ -376,8 +381,8 @@ $table->define_columns($tablecolumns);
 $table->define_headers($tableheaders);
 $table->define_baseurl($baseurl->out());
 
-if (!isset($hiddenfields['lastaccess'])) {
-    $table->sortable(true, 'lastaccess', SORT_DESC);
+if (!isset($hiddenfields['lastcourseaccess'])) {
+    $table->sortable(true, 'lastcourseaccess', SORT_DESC);
 } else {
     $table->sortable(true, 'firstname', SORT_ASC);
 }
diff --git a/user/profile.php b/user/profile.php
index 8b1bb5c8801..a5de397d5fd 100644
--- a/user/profile.php
+++ b/user/profile.php
@@ -407,7 +407,7 @@ if (!isset($hiddenfields['firstaccess'])) {
     } else {
         $datestring = get_string("never");
     }
-    echo html_writer::tag('dt', get_string('firstaccess'));
+    echo html_writer::tag('dt', get_string('firstsiteaccess'));
     echo html_writer::tag('dd', $datestring);
 }
 if (!isset($hiddenfields['lastaccess'])) {
@@ -416,7 +416,7 @@ if (!isset($hiddenfields['lastaccess'])) {
     } else {
         $datestring = get_string("never");
     }
-    echo html_writer::tag('dt', get_string('lastaccess'));
+    echo html_writer::tag('dt', get_string('lastsiteaccess'));
     echo html_writer::tag('dd', $datestring);
 }
 
diff --git a/user/view.php b/user/view.php
index 443099151b5..48e56c65a36 100644
--- a/user/view.php
+++ b/user/view.php
@@ -273,7 +273,7 @@ if (!isset($hiddenfields['lastaccess'])) {
     } else {
         $datestring = get_string("never");
     }
-    echo html_writer::tag('dt', get_string('lastaccess'));
+    echo html_writer::tag('dt', get_string('lastcourseaccess'));
     echo html_writer::tag('dd', $datestring);
 }