diff --git a/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php b/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php
index d90cb3ee0..80eee67b1 100644
--- a/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php
+++ b/snappymail/v/0.0.0/app/libraries/RainLoop/ServiceActions.php
@@ -1074,7 +1074,7 @@ class ServiceActions
 		$sTimeFormat = '';
 		$options = [$sLanguage, \substr($sLanguage, 0, 2), 'en'];
 		foreach ($options as $lang) {
-			$sFileName = APP_VERSION_ROOT_PATH.'app/localization/relativetimeformat/'.$lang.'.json';
+			$sFileName = APP_VERSION_ROOT_PATH.'app/localization/relativetimeformat/'.$lang.'.js';
 			if (\is_file($sFileName)) {
 				$sTimeFormat = \preg_replace('/^\\s+/', '', \file_get_contents($sFileName));
 				break;
diff --git a/snappymail/v/0.0.0/app/localization/relativetimeformat/de.json b/snappymail/v/0.0.0/app/localization/relativetimeformat/de.js
similarity index 100%
rename from snappymail/v/0.0.0/app/localization/relativetimeformat/de.json
rename to snappymail/v/0.0.0/app/localization/relativetimeformat/de.js
diff --git a/snappymail/v/0.0.0/app/localization/relativetimeformat/en-GB.json b/snappymail/v/0.0.0/app/localization/relativetimeformat/en-GB.js
similarity index 100%
rename from snappymail/v/0.0.0/app/localization/relativetimeformat/en-GB.json
rename to snappymail/v/0.0.0/app/localization/relativetimeformat/en-GB.js
diff --git a/snappymail/v/0.0.0/app/localization/relativetimeformat/en.json b/snappymail/v/0.0.0/app/localization/relativetimeformat/en.js
similarity index 100%
rename from snappymail/v/0.0.0/app/localization/relativetimeformat/en.json
rename to snappymail/v/0.0.0/app/localization/relativetimeformat/en.js
diff --git a/snappymail/v/0.0.0/app/localization/relativetimeformat/es.json b/snappymail/v/0.0.0/app/localization/relativetimeformat/es.js
similarity index 100%
rename from snappymail/v/0.0.0/app/localization/relativetimeformat/es.json
rename to snappymail/v/0.0.0/app/localization/relativetimeformat/es.js
diff --git a/snappymail/v/0.0.0/app/localization/relativetimeformat/fr.json b/snappymail/v/0.0.0/app/localization/relativetimeformat/fr.js
similarity index 100%
rename from snappymail/v/0.0.0/app/localization/relativetimeformat/fr.json
rename to snappymail/v/0.0.0/app/localization/relativetimeformat/fr.js
diff --git a/snappymail/v/0.0.0/app/localization/relativetimeformat/nl.json b/snappymail/v/0.0.0/app/localization/relativetimeformat/nl.js
similarity index 100%
rename from snappymail/v/0.0.0/app/localization/relativetimeformat/nl.json
rename to snappymail/v/0.0.0/app/localization/relativetimeformat/nl.js