nodered_cfg/node_modules/cron/examples/run_at_specific_date.js

const CronJob = require('../lib/cron.js').CronJob;

console.log('Before job instantiation');
let date = new Date();
date.setSeconds(date.getSeconds()+2);
const job = new CronJob(date, function() {
	const d = new Date();
	console.log('Specific date:', date, ', onTick at:', d);
});
console.log('After job instantiation');
job.start();