~/devtools / cron / every-day
tool::cron-guide

cron every-day

0 0 * * *

Every Day at Midnight

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Field Breakdown
0
Minute (0–59)
at 0
0
Hour (0–23)
at 0
*
Day of Month (1–31)
any
*
Month (1–12)
any
*
Day of Week (0–6)
any
0–59
0–23
1–31
1–12
0–6 (Sun–Sat)

Runs once daily at 00:00 (midnight). Both the minute and hour fields are set to 0, making it execute at the start of each day. The most widely used pattern for daily maintenance, reporting, and data cleanup.

Next 5 Executions (Example)
UTC example times after 2026-01-01
#1Thu, Jan 1, 2026, 12:00 AM UTC
#2Fri, Jan 2, 2026, 12:00 AM UTC
#3Sat, Jan 3, 2026, 12:00 AM UTC
#4Sun, Jan 4, 2026, 12:00 AM UTC
#5Mon, Jan 5, 2026, 12:00 AM UTC

Platform Usage

Linux Crontab— Run crontab -e and add the line
# crontab -e
0 0 * * * /path/to/script.sh
# With logging:
0 0 * * * /path/to/script.sh >> /var/log/myjob.log 2>&1
Kubernetes CronJob— Set in spec.schedule field
apiVersion: batch/v1
kind: CronJob
metadata:
  name: my-cronjob
spec:
  schedule: "0 0 * * *"
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: my-job
            image: my-image:latest
          restartPolicy: OnFailure
GitHub Actions— Add to on.schedule trigger
on:
  schedule:
    - cron: '0 0 * * *'

jobs:
  my-job:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - run: ./my-script.sh

Common Use Cases

  • ▸Daily database backups
  • ▸Daily analytics report generation
  • ▸Expired data cleanup
  • ▸Daily usage statistics aggregation
  • ▸Automated certificate renewal checks

Related Presets

0 0 * * *midnight→* * * * *every minute→*/5 * * * *every 5 minutes→*/10 * * * *every 10 minutes→
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