What does the cron expression 0 13 * * * mean?

The cron expression 0 13 * * * schedules a job to run daily at 1 PM. The five fields represent: minute, hour, day of month, month, and day of week.

How do I schedule a cron job to run daily at 1 PM?

Add this line to your crontab: 0 13 * * * /path/to/command. Open your crontab for editing with crontab -e and paste the expression followed by your command.

How do I monitor a cron job that runs daily at 1 PM?

Add a heartbeat check: 0 13 * * * /path/to/script.sh && curl -fsS https://cronsignal.io/ping/YOUR_CHECK_ID. You'll be alerted if the job doesn't run on schedule.

Cron Job Daily at 1 PM — 0 13 * * * (Copy-Paste Ready)

Understanding the Expression

The cron expression 0 13 * * * breaks down as follows:

Field	Value	Meaning
Minute	0	At minute 0
Hour	13	At 13:00
Day of month	*	Every day of the month
Month	*	Every month
Day of week	*	Every day of the week

Example Usage

Basic crontab entry

0 13 * * * /path/to/your/script.sh

With output logging

0 13 * * * /path/to/script.sh >> /var/log/script.log 2>&1

With monitoring

0 13 * * * /path/to/script.sh && curl -fsS https://cronsignal.io/ping/YOUR_CHECK_ID

Common Use Cases for Daily at 1 PM

Database backups: Create daily database snapshots
Log rotation: Archive and compress old log files
Daily reports: Generate and email daily summary reports
Data aggregation: Compile daily statistics and metrics

Platform Equivalents

The same schedule expressed across common platforms and schedulers:

Platform	Syntax
Linux crontab	`0 13 * * *`
GitHub Actions	`- cron: '0 13 * * *'`
systemd timer	`OnCalendar=--* 13:00:00`
Kubernetes CronJob	`schedule: "0 13 * * *"`
AWS EventBridge	`cron(0 13 * * ? *)`

Timezone Considerations

1 PM UTC equals 8 AM EST / 9 AM EDT / 5 AM PST. A good window for mid-morning US jobs. For 1 PM EST, use 0 18 * * * UTC instead.

Common Mistakes

DST shift: If your server observes DST, 0 13 * * * fires at different UTC times in summer vs winter.
Peak traffic timing: 1 PM UTC is early morning in the US — often low traffic. Adjust if targeting European business hours instead.
AWS EventBridge day-of-week: Use ? not *: cron(0 13 * * ? *).

Cron Daily at 1 PM