fix: tz var

Makefile

@@ -7,7 +7,7 @@ help:
 	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
 
 serve: ## Serve blog with a container on port 8000
-	docker run --rm -p 8000:8000 -v $(CURRENT_DIR):/src $(CONTAINER) mkdocs serve
+	docker run --rm -p 8000:8000 -e TZ=UTC -v $(CURRENT_DIR):/src $(CONTAINER) mkdocs serve
 
 build: ## Build blog pages
 	mkdir -p $(SITE_DIR)