Cron Expression Generator
Pick minutes, hours, days, months and weekdays from the controls. You get the five field expression, a sentence describing it and the next five times it will run.
Dieser Inhalt ist auf Englisch.
Durchgerechnete Beispiele
Weekdays at 09:30
Minute: at 30 Hour: at 9 Day of week: MON-FRI Counted from Thursday 15 October 2026, 09:30.
Expression: 30 9 * * 1-5 In plain English: At 09:30 on Monday to Friday. Next run: Fri 16 Oct 2026, 09:30 Then: Mon 19 Oct 2026, 09:30 Then: Tue 20 Oct 2026, 09:30 Then: Wed 21 Oct 2026, 09:30 Then: Thu 22 Oct 2026, 09:30
Day names and ranges are turned into numbers in the expression.
Every 15 minutes in working hours
Minute: every 15 Hour: between 9 and 17 Counted from Thursday 15 October 2026, 09:30.
Expression: */15 9-17 * * * In plain English: Every 15 minutes during hours 9 to 17. Next run: Thu 15 Oct 2026, 09:45 Then: Thu 15 Oct 2026, 10:00 Then: Thu 15 Oct 2026, 10:15 Then: Thu 15 Oct 2026, 10:30 Then: Thu 15 Oct 2026, 10:45
The first run is the next quarter hour after the start time.
Start of every third month
Minute: at 0 Hour: at 0 Day of month: at 1 Month: every 3 Counted from Thursday 15 October 2026, 09:30.
Expression: 0 0 1 */3 * In plain English: At 00:00 on day 1 of the month in every 3rd month. Next run: Fri 1 Jan 2027, 00:00 Then: Thu 1 Apr 2027, 00:00 Then: Thu 1 Jul 2027, 00:00 Then: Fri 1 Oct 2027, 00:00 Then: Sat 1 Jan 2028, 00:00
A step in the month field starts at January, so it runs in January, April, July and October.
Über Cron Expression Generator
This cron expression generator builds a schedule without making you remember the syntax. For each of the five fields, minute, hour, day of the month, month and day of the week, choose whether the job runs every time, every N, at chosen values or between two values. The five field expression updates as you go.
Under the expression you get a sentence in plain English and the next five times the job would run, so you can see at once whether it does what you meant. Pick a common schedule to start from, or set the controls yourself. Run times are counted from now, or from a date and time you choose, in your local time zone.
So verwenden Sie Cron Expression Generator
- Pick a common schedule, or set each field with the controls.
- Read the plain English sentence and the next five run times to check the schedule.
- Copy the expression into your scheduler.
Typische Einsatzzwecke
- Setting up a nightly backup or report
- Scheduling a task for weekday mornings only
- Checking that a monthly job really runs on the day you expect
- Explaining a schedule to someone who does not read cron
Häufige Fragen
What do the five fields mean?
In order they are minute (0 to 59), hour (0 to 23), day of the month (1 to 31), month (1 to 12) and day of the week (0 to 6, with 0 as Sunday). An asterisk means every value.
What happens if I set both a day of the month and a day of the week?
Standard cron runs the job when either one matches. If you want only Mondays that fall on the 1st, you need to check the date inside the job.
Which time zone do the run times use?
They use your local time zone, as a guide. The scheduler that runs your job uses its own time zone, which is often UTC, so check it before you rely on a time.
Does my scheduler use five fields?
Most do. Some add a seconds field first and use a question mark in place of an asterisk for one of the day fields, so check its documentation.