Cron Generator

Describe, build, and preview cron expressions with upcoming run times

Cron expression

5*/41271

At 5 minutes past the hour, every 4 hours, on day 12 of the month, on Monday, and only in July

Upcoming runs

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Symbol	Meaning
*	Any value — matches every value in the field.
,	Value list — separate multiple values (e.g. 1,3,5).
-	Range of values (e.g. 1-5 means 1,2,3,4,5).
/	Step values (e.g. */15 = every 15th).
0-9	Literal numeric value within the field's range.

Support for these operators varies by platform — your cron parser may not implement all of them.

Symbol	Meaning
?	No specific value — used in day-of-month or day-of-week.
L	Last day of the month (or week, in day-of-week).
W	Nearest weekday to the given day of month.
#	Nth weekday of the month (e.g. 5#3 = 3rd Friday).
L-n	n days before the last day of the month.

Symbol	Equivalent	Meaning
@yearly	0 0 1 1 *	Once a year at midnight, Jan 1.
@annually	0 0 1 1 *	Alias of @yearly.
@monthly	0 0 1 * *	Once a month at midnight on the 1st.
@weekly	0 0 * * 0	Once a week at midnight on Sunday.
@daily	0 0 * * *	Once a day at midnight.
@midnight	0 0 * * *	Alias of @daily.
@hourly	0 * * * *	Once an hour at minute 0.
@reboot	—	Run once at startup (not time-based).