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Tools/Cron

Cron for the 1st and 15th at 9am

0 9 1,15 * *

At 09:00 AM, on day 1 and 15 of the month

Open in builder

What this schedule does

0 9 1,15 * * runs at 09:00 on the 1st and 15th. Payroll and mid-month reports use this pair because it is simpler than two separate crontabs.

Next 5 runs (UTC)

Times below are computed for UTC. Open the builder to preview another timezone.

  1. Tue, 01 Sept 2026, 09:00 UTC
  2. Tue, 15 Sept 2026, 09:00 UTC
  3. Thu, 01 Oct 2026, 09:00 UTC
  4. Thu, 15 Oct 2026, 09:00 UTC
  5. Sun, 01 Nov 2026, 09:00 UTC

Copy-paste snippets

GitHub Actions

UTC only. Quote the expression so YAML keeps the stars.

on:
  schedule:
    - cron: '0 9 1,15 * *'

Kubernetes

CronJob spec.schedule. Kubernetes uses the timezone of the kube-controller-manager unless you set .spec.timeZone.

apiVersion: batch/v1
kind: CronJob
metadata:
  name: job
spec:
  schedule: "0 9 1,15 * *"
  jobTemplate:
    spec:
      template:
        spec:
          restartPolicy: OnFailure
          containers:
            - name: job
              image: busybox
              args: ["echo", "run"]

AWS EventBridge

Six fields: minutes hours day-of-month month day-of-week year. Use ? in either day-of-month or day-of-week.

cron(0 9 1,15 * ? *)

Quartz

Quartz is seconds-first (6 or 7 fields). Day-of-week names are MON, TUE, … and ? is required in one of the day fields.

0 0 9 1,15 * *

Vercel Cron

{
  "crons": [
    {
      "path": "/api/cron",
      "schedule": "0 9 1,15 * *"
    }
  ]
}

crontab

0 9 1,15 * * /usr/local/bin/job

node-cron

import cron from 'node-cron';

cron.schedule('0 9 1,15 * *', () => {
  // job
});

Spring @Scheduled

Spring uses 6 fields by default (seconds first) unless you set spring.task.scheduling.cron.expression.

@Scheduled(cron = "0 0 9 1,15 * *")
public void run() {
    // job
}

Related schedules

Platform guides