Issue with cron expression in java spring boot application - java

I am running a job scheduler in spring boot application.
To execute job every 5 min, I am using below cron expression
#Scheduled(cron = "0 0/5 * * * *", zone ="EST").
This is working fine
But when I try to execute the same job at a specific time, for instance at 11:30 AM, I am using below cron expression
#Scheduled(cron = "0 30 11 * * *", zone ="EST")
This is not working
I couldn't find any mistake w.r.t syntax. Please help if I am doing anything wrong

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Start a scheduled spring batch job 5 seonds after start of previous one

I have a spring batch job with a #Scheduled(fixedDelay=5000) annotation. But it starts 5 seconds after the end of the previous execution. How can I start it 5 seconds after the start of the previous execution?

Use #Scheduled(fixedRate = 5000). You can also use a CRON expression #Scheduled(cron = "*/5 * * * * ?") but it seems like an overkill.

Spring scheduler cron expression not working

We are use spring scheduler with following setting but wondering why its not working for us?
Our expectation is it should execute every day at 2 AM, Is anything wrong with that?
<task:scheduled ref="invoiceScheduler" method="updateInvoiceStatusToOverDue" cron="0 0 2 * * ?" />
Thanks in Advance.

This cron works for my SpringBoot application:
#Scheduled(cron = "0 0 2 1/1 * *")
Btw, what "doesn't work"? Could you please elaborate?

The following task is being scheduled to run 10 minutes past each hour but only during the 8-to-5 "business hours" on weekdays.
scheduler.schedule(task, new CronTrigger("0 10 8-17 * * MON-FRI"));
Could you please try this:
scheduler.schedule(task, new CronTrigger("0 1 2 * * MON-FRI"));
OR
scheduler.schedule(task, new CronTrigger("0 1 2 * * *"));

"0 0 2 * * *" instead of "0 0 2 * * ?" helped us to achieve scheduler to invoke every day at 2 AM. Thanks everyone for finding time and helping me.

How to specify a Cron job for the following described Scenario?

Using Java & Quartz, is there a way to specify a Cron job (using a cron expression OR not) for the following scenario;
(Parent-Event) ==> Start at <Time-X of day> & execute once every 5 days{
(Child-Event) ==> Start at <Time-X of day> & execute 3-times at 1 hour intervals{...}
}

TriggerBuilder class has startAt and endAt method. startAt mekes start executing a job at specified date, whereas endAt makes stop executing a job at specified date.
Child-Event is scheduled by Parent-Event, and Time-X should be less than 22.
For Parent-Event:
Cron expression: "0 0 X * * ?"
startAt: When you want to start a job
endAt : startAt date + 5 days
For Child-Event:
Cron expression: "0 0 X-X+2 * * ?"
endAt : The midnight of the day when executing Parent-Event

#Scheduled is running twice with spring 4 java configuration

I am using Spring 4.0.2 with Java configuration. There is not an XML configuration.
I have #Scheduled annotation for a cron job. It is running twice. Can someone help me? This is what I'm trying.
#Scheduled(cron = "1 * * * * ?"

#Scheduled(cron = "1 * * * * ?") : Runs your job at 01 second of every (any) minute.
So you job runs once every minute.
Test:
#Scheduled(cron = "1 * * * * ?")
public void run(){
System.out.println("Running Test Run : "+DateTime.now());
}
Output:
Running Test Run : 2016-06-08T20:06:01.019Z
Running Test Run : 2016-06-08T20:07:01.015Z
Running Test Run : 2016-06-08T20:08:01.013Z
Running Test Run : 2016-06-08T20:09:01.011Z
More info on Spring cron expressions.

Spring execute method every 15 minutes

I tried to use cron expression from this site http://www.cronmaker.com/
#Scheduled(cron = "0 0/15 * 1/1 * ? *")
public void clearRps() {
}
But it throws: java.lang.IllegalStateException: Encountered invalid #Scheduled method 'clearRps': Cron expression must consist of 6 fields (found 7 in "0 0/15 * 1/1 * ? *")

Just use the following cron:
#Scheduled(cron = "0 0/15 * * * *")
Spring cron expression syntax slightly differs from unix cron expression. One immediate difference - it supports 1 less field (6 rather than 7).

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