better arg name

src/utils/time.ts

@@ -1,16 +1,16 @@
 /**
  * Parsed string adapted with TZ (locales) and format for the specified lang.
- * @param lang Lang
+ * @param tz Lang
  * @param locale Locales
  * @param date Date
  * @returns String
  */
 export const showDate = (
-	lang: string,
+	tz: string,
 	locale: Map<string, unknown>,
 	date: Date
 ) => {
-	return date.toLocaleString(lang).replace(' ', ` ${
+	return date.toLocaleString(tz).replace(' ', ` ${
 		locale.get('u_time_at')
 	} `);
 };