diff --git a/Makefile b/Makefile
index dde2e5b..1b1cc7a 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ LAST_TAG      = $(shell git describe --tags --abbrev=0 HEAD^)
 COMMIT        = $(shell git rev-parse --short HEAD)
 FULL_COMMIT   = $(shell git rev-parse HEAD)
 RELEASE_NOTES = `git log ${LAST_TAG}..HEAD --oneline --decorate`
-DATE          = $(shell date +%Y-%m-%d)
+DATE          = $(shell date -u +"%Y-%m-%dT%H:%M:%SZ")
 DOCKER_REPO   = wi1dcard/v2ray-exporter
 
 export DOCKER_CLI_EXPERIMENTAL=enabled
diff --git a/main.go b/main.go
index c32be9f..d032b78 100644
--- a/main.go
+++ b/main.go
@@ -36,8 +36,9 @@ func main() {
 		os.Exit(0)
 	}
 
+	fmt.Printf("V2Ray Exporter %v-%v (built %v)\n", buildVersion, buildCommit, buildDate)
+
 	if opts.Version {
-		fmt.Printf("V2Ray Exporter %v (commit %v, built %v)\n", buildVersion, buildCommit, buildDate)
 		os.Exit(0)
 	}