Timer not accurate


I am working on Timer events and created a simple process with timer start event (Date, duration and cycle) all three.

  1. I have scheduled to start the process at 2019-03-21T11:25:00 , but it started at 2019-03-21T11:25:20

  2. I have scheduled the duration as PT1M . in cockpit, i see that this process is deployed at 2019-03-21T11:14:20 .But as per my duration, process instance should start at 2019-03-21T11:15:20 , but it started at 2019-03-21T11:16:05 .

  3. I have defined Cycle for timer start event , and configured the cycle as R/PT30S .
    Which should start new process instance every 30 secs . But the cycle is not starting every 30 secs.

What is the problem? Are my configurations wrong?


This issue has been discussed in other posts:
e.g. Timer not working in Camunda 7.5.3 using PT3S


Thank you. It helped.