0 0 * * 1,3,5. Three runs per week, evenly spaced. The most common “three times a week” cadence in production crontabs.View future cron matches in a calendar
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0 0 * * 1,3,5
The day-of-week list 1,3,5 selects Monday (1), Wednesday (3) and Friday (5) — three days per week. Equivalent name-alias form: 0 0 * * MON,WED,FRI.
See the dedicated guide for the full breakdown: Cron every week.
Paste it into the editor above to see the next runs on a calendar.
0 19 * * 1,3,5 — Mon/Wed/Fri at 19:00 — see the dedicated FAQ0 9 * * MON,WED,FRI — name-alias form (equivalent)0 0 * * 2,4 — Tuesday and Thursday — the alternate three-day pattern0 0 * * 1,3,5 uses standard 5-field cron syntax, so it works in:
crontab — 0 0 * * 1,3,5 /path/to/script.shvercel.json.cron(...) with day-of-week as ? and a year field.0) and append day-of-week ?.`0 0 * * 1,3,5`. Paste this into any cron-compatible scheduler (Linux crontab, AWS EventBridge, Vercel cron, Quartz, node-cron, robfig/cron) to run a job every Monday, Wednesday and Friday.
The editor above shows the next 30+ runs on a calendar in your local timezone, plus a plain-English description. If the calendar matches your intent, the cron is correct.
It uses standard 5-field cron syntax, so yes — Linux crontab, AWS EventBridge (with the additional `?` and year fields), Vercel cron jobs, Quartz Scheduler, node-cron, robfig/cron, and Kubernetes CronJob all accept it. Vercel's free Hobby plan caps the minimum frequency at once-per-day; the Pro plan removes that cap.
Most schedulers will start the new run anyway, leading to overlap. To prevent this, wrap the command with `flock -n /tmp/myjob.lock /path/to/script.sh` on Linux, or set `concurrencyPolicy: Forbid` on Kubernetes CronJob. Vercel cron and AWS EventBridge let you configure concurrency at the platform level.
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