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springspring-bootcronspring-data-rest
Charlie
Charlie

Reputation: 3374

Spring Scheduling - Cron expression for everyday at midnight not working?

I am trying to schedule a task in Spring which is to be run everyday at midnight. I followed the official guide from Spring and made the scheduler class as below:

@Component
public class OverduePaymentScheduler {    
    @Scheduled(cron = "0 0 0 * * *")
    public void trackOverduePayments() {
        System.out.println("Scheduled task running");
    }
}

However the task does not run when the clock hits 12am. I got the cron expression from the documentation for quartz scheduler at this link.

The scheduler is executed fine if I change the cron expression to "*/10 * * * * *" which runs every ten seconds.

So what am I doing wrong?

Upvotes: 58

Views: 188371

Answers (5)

Anshul
Anshul

Reputation: 199

For spring 5.3 or above users, we have a much simpler way to define crons

Macro Meaning
@yearly (or @annually) once a year (0 0 0 1 1 *)
@monthly once a month (0 0 0 1 * *)
@weekly once a week (0 0 0 * * 0)
@daily (or @midnight) once a day (0 0 0 * * *)
@hourly once an hour, (0 0 * * * *)

ref: https://spring.io/blog/2020/11/10/new-in-spring-5-3-improved-cron-expressions

Upvotes: 5

RazvanParautiu
RazvanParautiu

Reputation: 2938

These are valid formats for cron expressions:

  • 0 0 * * * * = the top of every hour of every day.
  • */10 * * * * * = every ten seconds.
  • 0 0 8-10 * * * = 8, 9 and 10 o'clock of every day.
  • 0 0 6,19 * * * = 6:00 AM and 7:00 PM every day.
  • 0 0/30 8-10 * * * = 8:00, 8:30, 9:00, 9:30, 10:00 and 10:30 every day.
  • 0 0 9-17 * * MON-FRI = on the hour nine-to-five weekdays
  • 0 0 0 25 12 ? = every Christmas Day at midnight

The pattern is:

second, minute, hour, day, month, weekday

So your answer is:

0 0 0 * * *

Upvotes: 126

RahuL Sharma
RahuL Sharma

Reputation: 548

You can use below format to satisfy your requirement:

0 0 23 * * *

Since the hours starts from 0 to 23 for Quartz configuration. You can refer this link for more information.

Upvotes: 3

Charlie
Charlie

Reputation: 3374

I finally got it to work with this cron expression 0 0 0 * * * but I had to set the time zone in the scheduler class like this. @Scheduled(cron = "0 0 0 * * *",zone = "Indian/Maldives")

Upvotes: 46

Ajit Soman
Ajit Soman

Reputation: 4074

Please use below cron pattern for 12:00 AM every day: 

    // at 12:00 AM every day
    @Scheduled(cron="0 0 0 * * ?")

I have checked your cron pattern at this website:http://www.cronmaker.com/.

It says pattern 0 0 0 * * * as invalid.

Upvotes: 21

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