diff --git a/core/config.class.inc.php b/core/config.class.inc.php
index 430146982..0d4ec2358 100644
--- a/core/config.class.inc.php
+++ b/core/config.class.inc.php
@@ -1213,6 +1213,14 @@ class Config
 			'source_of_value' => '',
 			'show_in_conf_sample' => false,
 		],
+		'activity_panel.datetimes_reformat_limit' => [
+			'type' => 'integer',
+			'description' => 'Limit (in days) for the dates / times to be displayed in a relative format (eg. "2 days ago") instead of in absolute format (eg. "2021-05-01 10:00"). After that limit, they will all be displayed in absolute format using the "date_and_time_format" parameter.',
+			'default' => 7,
+			'value' => 7,
+			'source_of_value' => '',
+			'show_in_conf_sample' => false,
+		],
 		'obsolescence.show_obsolete_data' => [
 			'type' => 'bool',
 			'description' => 'Default value for the user preference "show obsolete data"',
diff --git a/js/layouts/activity-panel/activity-panel.js b/js/layouts/activity-panel/activity-panel.js
index ccf25ead3..664005ad1 100644
--- a/js/layouts/activity-panel/activity-panel.js
+++ b/js/layouts/activity-panel/activity-panel.js
@@ -25,7 +25,7 @@ $(function()
 			options:
 				{
 					datetime_format: null,
-					datetimes_reformat_limit: 14,   // In days
+					datetimes_reformat_limit: 7,    // In days
 					transaction_id: null,           // Null until the user gets the lock on the object
 					lock_enabled: false,            // Should only be true when object mode is set to "view" and the "concurrent_lock_enabled" config. param. enabled
 					lock_status: null,
diff --git a/templates/base/layouts/activity-panel/layout.js.twig b/templates/base/layouts/activity-panel/layout.js.twig
index 0355c151f..a54c0ab4e 100644
--- a/templates/base/layouts/activity-panel/layout.js.twig
+++ b/templates/base/layouts/activity-panel/layout.js.twig
@@ -1,5 +1,6 @@
 $('#{{ oUIBlock.GetId() }}').activity_panel({
     datetime_format: {{ oUIBlock.GetDateTimeFormatForJSWidget()|json_encode|raw }},
+    datetimes_reformat_limit: {{ get_config_parameter('activity_panel.datetimes_reformat_limit') }},
     {% if oUIBlock.HasTransactionId() %}transaction_id: {{ oUIBlock.GetTransactionId()|var_export }},{% endif %}
     lock_enabled: {{ oUIBlock.IsLockEnabled()|var_export }},
     lock_watcher_period: {{ get_config_parameter('activity_panel.lock_watcher_period') }},