Editing an event from Jira
Your Google account must be connected to Jira and the Google Calendar integration must be enabled.
You can only edit an event if you have the right permissions on the event’s calendar. If you don’t, the Edit option will be disabled.
Changes that you make to an invitation will not be reflected in the original event unless guests are allowed to modify it. If you don’t have permission to edit the original event, you'll see a warning at the top of the Edit Event window.
You can edit a linked event directly in the Jira issue.
To edit an event:
Open the event’s menu and select Edit.
Edit the desired fields, then click Update.
Participants you add or remove will receive email notifications.