Cron every Monday at 9 AM
Every Monday at 9 AM in cron is 0 9 * * 1 (Unix) or 0 0 9 ? * MON (Quartz, Spring); this page lists the next Mondays, calculated in your browser.
0 9 * * 1
0 0 9 ? * MON
cron(0 9 ? * MON *)
Read by our parser as: At 9:00 AM, only on Monday. Open in the cron checker
Next 10 runs
Calculating in your browser...
- 1
- 2
- 3
At a glance
- Accepts
- Nothing to enter - the schedule is preset on the page
- Outputs
- The expression in Unix, Quartz/Spring and AWS form, plus its next 10 run times
- Where it runs
- Entirely in your browser, on your device
- What leaves your device
- Nothing - what you type stays in this tab
- Limits
- Run times use your browser's timezone or UTC; real schedulers can start a run late
- Account
- Not required - there is no sign-up
- Price
- Free, with no watermark and no usage cap
- Made by
- Visrut
What it means
0 9 * * 1 runs at 9:00 every Monday: minute 0, hour 9, any day of month, any month, day of week 1. That last 1 is the bit that changes meaning between dialects. In Unix cron and Spring 1 is Monday; in Quartz and AWS 1 is Sunday and Monday is 2.
When this is the right schedule
Use it when you want a weekly kickoff: a planning reminder, a weekly metrics report, a reset of weekly quotas.
When to pick something else
Look elsewhere when Monday is a public holiday for your team now and then (cron will run anyway), or you need the first Monday of the month only, which needs a different approach.
Things to watch
Numbers move between dialects
Moving 0 9 * * 1 from crontab to Quartz by adding seconds gives 0 0 9 ? * 1, which Quartz runs on Sundays. Use MON and it means Monday in Unix, Quartz, Spring and AWS alike.
Every other Monday isn't possible
Cron has no week counter. */2 in the day-of-week field means Sunday, Tuesday, Thursday, Saturday. For fortnightly, run weekly and check the ISO week number in the job ([ $(( $(date +\%V) \% 2 )) -eq 0 ], with % escaped inside a crontab).
Monday 9 AM in which zone
For a team spread across zones, pick the earliest office and set the timezone on the schedule, or the report arrives on Sunday evening for someone.
Frequently asked questions
Why does my Quartz job with day of week 1 run on Sundays?
Quartz counts 1 = Sunday through 7 = Saturday. Use 2 or MON for Monday.
How do I run every other Monday?
Cron can't count weeks. Schedule it every Monday and skip odd (or even) ISO week numbers inside the job.