diff --git a/brozzler/cli.py b/brozzler/cli.py
index 7882b9f..ad26827 100755
--- a/brozzler/cli.py
+++ b/brozzler/cli.py
@@ -137,7 +137,7 @@ def configure_logging(args):
             structlog.processors.add_log_level,
             structlog.processors.StackInfoRenderer(),
             structlog.dev.set_exc_info,
-            structlog.processors.TimeStamper(fmt="%Y-%m-%d %H:%M:%S", utc=False),
+            structlog.processors.TimeStamper(fmt="%Y-%m-%d %H:%M:%S", utc=True),
             structlog.processors.CallsiteParameterAdder(
                 [
                     structlog.processors.CallsiteParameter.FILENAME,