Hi @Rajesh Arvapalli ,
welcome to the community.
You can do this by editing the worklog. You can find the worklog at the bottom of the issue detail view on the worklog-tab.
But it depends on the permissions, if you are allowed to edit your own worklog or not. If there is no edit-button at the worklog, you are not allowed to change this.
In that case, you will have to ask someone who has this permission. You can probably ask your project lead, he might be able to do that or know someone who does.
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