diff --git a/modules/monitoring/application/forms/Command/Object/AddCommentCommandForm.php b/modules/monitoring/application/forms/Command/Object/AddCommentCommandForm.php
index a958dfee6..72133a0c5 100644
--- a/modules/monitoring/application/forms/Command/Object/AddCommentCommandForm.php
+++ b/modules/monitoring/application/forms/Command/Object/AddCommentCommandForm.php
@@ -3,6 +3,8 @@
 
 namespace Icinga\Module\Monitoring\Forms\Command\Object;
 
+use DateInterval;
+use DateTime;
 use Icinga\Application\Config;
 use Icinga\Module\Monitoring\Command\Object\AddCommentCommand;
 use Icinga\Web\Notification;
@@ -63,6 +65,52 @@ class AddCommentCommandForm extends ObjectsCommandForm
                 )
             );
         }
+
+        if (version_compare($this->getBackend()->getProgramVersion(), '2.13.0', '>=')) {
+            $config = Config::module('monitoring');
+            $commentExpire = (bool) $config->get('settings', 'comment_expire', false);
+
+            $this->addElement(
+                'checkbox',
+                'expire',
+                [
+                    'label'         => $this->translate('Use Expire Time'),
+                    'value'         => $commentExpire,
+                    'description'   => $this->translate('If the comment should expire, check this option.'),
+                    'autosubmit'    => true
+                ]
+            );
+
+            if (isset($formData['expire']) ? $formData['expire'] : $commentExpire) {
+                $expireTime = new DateTime();
+                $expireTime->add(new DateInterval($config->get('settings', 'comment_expire_time', 'PT1H')));
+
+                $this->addElement(
+                    'dateTimePicker',
+                    'expire_time',
+                    [
+                        'label'         => $this->translate('Expire Time'),
+                        'value'         => $expireTime,
+                        'description'   => $this->translate(
+                            'Enter the expire date and time for this comment here. Icinga will delete the'
+                            . ' comment after this time expired.'
+                        )
+                    ]
+                );
+
+                $this->addDisplayGroup(
+                    ['expire', 'expire_time'],
+                    'expire-expire_time',
+                    [
+                        'decorators' => [
+                            'FormElements',
+                            ['HtmlTag', ['tag' => 'div']]
+                        ]
+                    ]
+                );
+            }
+        }
+
         return $this;
     }
 
@@ -81,6 +129,13 @@ class AddCommentCommandForm extends ObjectsCommandForm
             if (($persistent = $this->getElement('persistent')) !== null) {
                 $comment->setPersistent($persistent->isChecked());
             }
+
+            $expire = $this->getElement('expire');
+
+            if ($expire !== null && $expire->isChecked()) {
+                $comment->setExpireTime($this->getElement('expire_time')->getValue()->getTimestamp());
+            }
+
             $this->getTransport($this->request)->send($comment);
         }
         Notification::success($this->translatePlural(
diff --git a/modules/monitoring/application/views/scripts/show/components/comments.phtml b/modules/monitoring/application/views/scripts/show/components/comments.phtml
index 4edc47106..a5fddef8f 100644
--- a/modules/monitoring/application/views/scripts/show/components/comments.phtml
+++ b/modules/monitoring/application/views/scripts/show/components/comments.phtml
@@ -50,6 +50,13 @@ if (empty($object->comments) && ! $addLink) {
                 <span class="comment-time">
                     <?= $this->translate('commented') ?>
                     <?= $this->timeAgo($comment->timestamp) ?>
+                <?php if ($comment->expiration): ?>
+                    <span aria-hidden="true">ǀ</span>
+                    <?= sprintf(
+                        $this->translate('Expires %s'),
+                        $this->timeUntil($comment->expiration)
+                    ) ?>
+                <?php endif ?>
                 </span>
                 <?= $comment->persistent ? $this->icon('attach', 'This comment is persistent.') : '' ?>
                 <?php if (isset($delCommentForm)) {
diff --git a/modules/monitoring/doc/03-Configuration.md b/modules/monitoring/doc/03-Configuration.md
index 233d029b6..c443e0bd0 100644
--- a/modules/monitoring/doc/03-Configuration.md
+++ b/modules/monitoring/doc/03-Configuration.md
@@ -26,6 +26,8 @@ acknowledge_expire_time       | **Optional.** Set default value for "Expire Time
 acknowledge_notify            | **Optional.** Check "Send Notification" in Acknowledgement dialog by default. Defaults to **1 (true)**.
 acknowledge_persistent        | **Optional.** Check "Persistent Comment" in Acknowledgement dialog by default. Defaults to **0 (false)**.
 acknowledge_sticky            | **Optional.** Check "Sticky Acknowledgement" in Acknowledgement dialog by default. Defaults to **0 (false)**.
+comment_expire                | **Optional.** Check "Use Expire Time" in Comment dialog by default. Defaults to **0 (false)**.
+comment_expire_time           | **Optional.** Set default value for "Expire Time" in Comment dialog, its calculated as now + this setting. Format is a [PHP Dateinterval](http://www.php.net/manual/en/dateinterval.construct.php). Defaults to **1 hour (PT1H)**.
 custom_notification_forced    | **Optional.** Check "Forced" in Custom Notification dialog by default. Defaults to **0 (false)**.
 hostcheck_all_services        | **Optional.** Check "All Services" in Schedule Host Check dialog by default. Defaults to **0 (false)**.
 hostdowntime_all_services     | **Optional.** Check "All Services" in Schedule Host Downtime dialog by default. Defaults to **0 (false)**.
diff --git a/modules/monitoring/library/Monitoring/Command/Object/AddCommentCommand.php b/modules/monitoring/library/Monitoring/Command/Object/AddCommentCommand.php
index 75a7c1fd4..9e3151f94 100644
--- a/modules/monitoring/library/Monitoring/Command/Object/AddCommentCommand.php
+++ b/modules/monitoring/library/Monitoring/Command/Object/AddCommentCommand.php
@@ -24,6 +24,13 @@ class AddCommentCommand extends WithCommentCommand
      */
     protected $persistent;
 
+    /**
+     * Optional time when the acknowledgement should expire
+     *
+     * @var int|null
+     */
+    protected $expireTime;
+
     /**
      * Set whether the comment is persistent
      *
@@ -46,4 +53,28 @@ class AddCommentCommand extends WithCommentCommand
     {
         return $this->persistent;
     }
+
+    /**
+     * Set the time when the acknowledgement should expire
+     *
+     * @param   int $expireTime
+     *
+     * @return  $this
+     */
+    public function setExpireTime($expireTime)
+    {
+        $this->expireTime = (int) $expireTime;
+
+        return $this;
+    }
+
+    /**
+     * Get the time when the acknowledgement should expire
+     *
+     * @return int|null
+     */
+    public function getExpireTime()
+    {
+        return $this->expireTime;
+    }
 }
diff --git a/modules/monitoring/library/Monitoring/Command/Renderer/IcingaApiCommandRenderer.php b/modules/monitoring/library/Monitoring/Command/Renderer/IcingaApiCommandRenderer.php
index 9557db3c4..3eb9a84c4 100644
--- a/modules/monitoring/library/Monitoring/Command/Renderer/IcingaApiCommandRenderer.php
+++ b/modules/monitoring/library/Monitoring/Command/Renderer/IcingaApiCommandRenderer.php
@@ -99,6 +99,11 @@ class IcingaApiCommandRenderer implements IcingaCommandRendererInterface
             'author'    => $command->getAuthor(),
             'comment'   => $command->getComment()
         );
+
+        if ($command->getExpireTime() !== null) {
+            $data['expiry'] = $command->getExpireTime();
+        }
+
         $this->applyFilter($data, $command->getObject());
         return IcingaApiCommand::create($endpoint, $data);
     }