- Maintenance standardize datetime format to YYYY-MM-DD hh:mm:ss

- Import dayjs extensions one time only
- Maintenance activeCondition centralize

server/util-server.js

@@ -22,10 +22,6 @@ const {
     },
 } = require("node-radius-utils");
 const dayjs = require("dayjs");
-const utc = require("dayjs/plugin/utc");
-let timezone = require("dayjs/plugin/timezone");
-dayjs.extend(utc);
-dayjs.extend(timezone);
 
 // From ping-lite
 exports.WIN = /^win/.test(process.platform);