import { CronJob } from "cron"; import { WaterMeService } from "actions/waterMe/waterMe.service"; const waterMeService = new WaterMeService(); new CronJob( "0 0 0 */1 * *", // cronTime async () => { console.log("isThirsty()"); await waterMeService.isThirsty(); }, // onTick null, // onComplete true, // start "Europe/Berlin", // timeZone ); // job.start() is optional here because of the fourth parameter set to true.