What is the cron expression for Monday, Wednesday, and Friday?

Use 0 0 * * 1,3,5 (at midnight). The comma-separated list 1,3,5 targets Monday, Wednesday, and Friday.

How is 1,3,5 different from 1-5?

1,3,5 runs on Monday, Wednesday, and Friday only (3 days). 1-5 runs every day Monday through Friday (5 days).

Cron Every Monday, Wednesday, and Friday

0 0 * * 1,3,5

Every Monday, Wednesday, and Friday at 12:00 AM

Next 10 Executions

Times shown in UTC

Wed, May 20, 202600:00
Fri, May 22, 202600:00
Mon, May 25, 202600:00
Wed, May 27, 202600:00
Fri, May 29, 202600:00
Mon, Jun 1, 202600:00
Wed, Jun 3, 202600:00
Fri, Jun 5, 202600:00
Mon, Jun 8, 202600:00
Wed, Jun 10, 202600:00

Field Breakdown

0

Minute

0

Hour

*

Day of Month

Every day

*

Month

Every month

1,3,5

Day of Week

Mon, Wed, Fri

About This Schedule

The cron expression 0 0 * * 1,3,5 triggers at midnight on Monday, Wednesday, and Friday. This three-day-a-week schedule provides regular processing at roughly 2-day intervals during the work week.

This schedule is popular for tasks that need more-than-weekly but less-than-daily attention: MWF data syncs, alternating-day reports, three-times-a-week backup rotations, and workout reminder systems. The spacing is close to every 2 days but skips the weekend.

For an every-weekday schedule instead, use the range syntax: 0 0 * * 1-5. Or swap the days to target Tuesday/Thursday/Saturday: 0 0 * * 2,4,6.