Every Day at 4 AM Cron Expression
Runs once daily at 04:00 server time.
Expression
0 4 * * *Try it in the tester →Field Breakdown
0
minute
4
hour
*
day-of-month
*
month
*
day-of-week
minuteat minute 0
hourat 4 AM (hour 4)
day-of-monthevery day (1–31)
monthevery month (1–12)
day-of-weekevery weekday (0=Sun – 6=Sat)
How It Works
Fires at 04:00 every day — useful when 03:00 is already saturated with backup jobs and you need a slightly later slot.
Example Run Times
- Mon 04:00:00
- Tue 04:00:00
- Wed 04:00:00
- Thu 04:00:00
- Fri 04:00:00
Frequently Asked Questions
Does this conflict with logrotate defaults?
Debian's default logrotate runs at 06:25 via `/etc/cron.daily`, so a 04:00 job will complete before logrotate kicks in.