<p>I have Kubernetes job which runs every day at 5 AM. Today I wanted to change it to 6 AM. My current time is 10 AM.</p>

<p>As soon as modified the time from 5 AM to 6 AM, I noticed that Kubernetes Cronjob immediately triggers the job even though my current time is 10 AM.</p>

<p>What is the reason for this? Is there any parameter which can be used to enable/disable this behavior?</p>

<pre><code>apiVersion: batch/v1beta1
kind: CronJob
metadata:
  name: do-not-want-to-reveal
  namespace: default
spec:
  concurrencyPolicy: Forbid
  failedJobsHistoryLimit: 2
  jobTemplate:
    metadata:
      creationTimestamp: null
    spec:
      backoffLimit: 1
      template:
        metadata:
          creationTimestamp: null
        spec:
          containers:
          - image: myrepo/myimage:mytag
            imagePullPolicy: Always
            name: do-not-want-to-reveal
            resources: {}
            terminationMessagePath: /dev/termination-log
            terminationMessagePolicy: File
          dnsPolicy: ClusterFirst
          restartPolicy: OnFailure
          schedulerName: default-scheduler
          securityContext: {}
          serviceAccount: myjob-sa
          serviceAccountName: myjob-sa
          terminationGracePeriodSeconds: 30
  schedule: 00 5 * * *
  successfulJobsHistoryLimit: 2
  suspend: false
</code></pre>

<hr>

<pre><code>Client Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.1", GitCommit:"b7394102d6ef778017f2ca4046abbaa23b88c290", GitTreeState:"clean", BuildDate:"2019-04-08T17:11:31Z", GoVersion:"go1.12.1", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"11", GitVersion:"v1.11.9", GitCommit:"16236ce91790d4c75b79f6ce96841db1c843e7d2", GitTreeState:"clean", BuildDate:"2019-03-25T06:30:48Z", GoVersion:"go1.10.8", Compiler:"gc", Platform:"linux/amd64"}
</code></pre>

<p>This is known behavior with <code>CronJob</code>. It creates job for "missed" schedule. Have a look at this open issue - <a href="https://github.com/kubernetes/kubernetes/issues/63371" rel="nofollow noreferrer">https://github.com/kubernetes/kubernetes/issues/63371</a></p>
