Issue Alarm allows users to send alarms (Email notifications) for any Jira issue. Simply press the Issue Alarm button and you can define a date and time when you want to receive the alarm.
Fields
Message: Set an individual message for your recipients.
Date: The date when the alarm should occur.
Time: Select the time when the alarm should occur. Currently you can only select full hours.
Who should be notified: Alarm others and inform them about important topics.
Switches for Assignee, Reporter, Voters and Watchers: For any hot topics where users change frequently you can easily send out notifications by these Issue fields. This way you wont forget anybody important.
Privacy
Users will only see their own alarms.
Security
All users that can create or edit Issues can also schedule Alarms.