diff --git a/main.go b/main.go
index b05b9d8..733f4a2 100644
--- a/main.go
+++ b/main.go
@@ -26,13 +26,15 @@ func getArgsStartTime() time.Time {
 	flag.Parse()
 	date := flag.Arg(0)
 	if date == "" {
-		// log.Println(flag.)
+		log.Println("args", flag.Args())
 		panic("please input date eg. '2020-11-30 16:29:17'")
 	}
-	start, err := time.ParseInLocation("2006-01-02 15:04:03", date, time.Local)
+
+	start, err := time.ParseInLocation("2006-01-02 15:04:05", date, time.Local)
 	if err != nil {
 		panic(err)
 	}
+
 	return start
 }
 
diff --git a/main_test.go b/main_test.go
new file mode 100644
index 0000000..ef64976
--- /dev/null
+++ b/main_test.go
@@ -0,0 +1,7 @@
+package main
+
+import "testing"
+
+func TestMain(t *testing.T) {
+	main()
+}