Cron every Monday, Wednesday, and Friday at 7:00 PM
How can one schedule a cron job for every Monday, Wednesday and Friday at 7:00 pm?
Question
How can one schedule a cron job for every Monday, Wednesday and Friday at 7:00 pm?
Answer
Use 0 19 * * 1,3,5 to run at 7:00 PM every Monday, Wednesday, and Friday. Cron uses 24-hour time, so 19 means 7 PM. In the common Unix numbering convention, day-of-week 1 is Monday, 3 is Wednesday, and 5 is Friday. Many schedulers also accept MON,WED,FRI, but name aliases are dialect-specific, so check your implementation before relying on them.
crontab
# every Monday, Wednesday, and Friday at 19:00019**1,3,5
Read 0 19 * * 1,3,5 from left to right: minute 0, hour 19, every day of the month, every month, and only weekdays 1, 3, and 5. The comma-separated final field is a list, not a range, so it selects exactly those three weekdays. Keep the day-of-month field as * when weekday is the only date restriction you want. The expression runs in the scheduler's configured timezone. If “7:00 PM” refers to a particular location, set that timezone explicitly; converting once to UTC can shift the local clock time when daylight saving rules change.
Keeping day-of-month unrestricted avoids unexpected extra runs. In many Unix cron implementations, restricting both day-of-month and day-of-week creates OR behavior: the job runs when either field matches, not only when both match. For example, adding day 1 while keeping 1,3,5 could run on every month's first day plus each selected weekday. The single weekday list also avoids maintaining three separate entries that can drift apart during later schedule changes.
See this cron expression on the calendar view example
Related questions
How can one schedule a cron job for every Monday, Wednesday and Friday at 7:00 pm?
Use 0 19 * * 1,3,5: minute 0, hour 19 (7 PM), and a day-of-week list where 1 is Monday, 3 Wednesday and 5 Friday. Many schedulers also accept MON,WED,FRI.
How do I set a cron job to run twice a week (bi-weekly)?
Twice a week: 0 0 * * 1,4 runs at midnight on Monday and Thursday. Every other week has no cron syntax: trigger weekly (0 9 * * 1) and gate it in the script.
How do I set up a cron job that runs every day at 1PM, 2PM and 3PM?
Use 0 13,14,15 * * *: an hour list runs at 13:00, 14:00 and 15:00 daily. 0 13-15 * * * is the equivalent range; different minutes need separate lines.
Can I run a cronjob every three days?
Use 0 0 1-30/3 * * to run at midnight on the 1st, 4th, 7th … 28th. The pattern restarts each month, so month-boundary gaps are 1-4 days, not 72 hours.
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