diff --git a/src/Factory/LoggerFactory.php b/src/Factory/LoggerFactory.php
index 274044eb29..3136b30101 100644
--- a/src/Factory/LoggerFactory.php
+++ b/src/Factory/LoggerFactory.php
@@ -59,6 +59,9 @@ class LoggerFactory
 		switch ($config->get('system', 'logger_config', 'stream')) {
 
 			case 'monolog':
+				$loggerTimeZone = new \DateTimeZone('UTC');
+				Monolog\Logger::setTimezone($loggerTimeZone);
+
 				$logger = new Monolog\Logger($channel);
 				$logger->pushProcessor(new Monolog\Processor\PsrLogMessageProcessor());
 				$logger->pushProcessor(new Monolog\Processor\ProcessIdProcessor());
@@ -127,6 +130,9 @@ class LoggerFactory
 		switch ($config->get('system', 'logger_config', 'stream')) {
 
 			case 'monolog':
+				$loggerTimeZone = new \DateTimeZone('UTC');
+				Monolog\Logger::setTimezone($loggerTimeZone);
+
 				$logger = new Monolog\Logger($channel);
 				$logger->pushProcessor(new Monolog\Processor\PsrLogMessageProcessor());
 				$logger->pushProcessor(new Monolog\Processor\ProcessIdProcessor());
diff --git a/src/Util/Logger/StreamLogger.php b/src/Util/Logger/StreamLogger.php
index 701d36d2b3..3031461061 100644
--- a/src/Util/Logger/StreamLogger.php
+++ b/src/Util/Logger/StreamLogger.php
@@ -134,7 +134,7 @@ class StreamLogger extends AbstractLogger
 		$record = array_merge($record, ['uid' => $this->logUid, 'process_id' => $this->pid]);
 		$logMessage = '';
 
-		$logMessage .= DateTimeFormat::localNow() . ' ';
+		$logMessage .= DateTimeFormat::utcNow() . ' ';
 		$logMessage .= $this->channel . ' ';
 		$logMessage .= '[' . strtoupper($level) . ']: ';
 		$logMessage .= $this->psrInterpolate($message, $context) . ' ';