I. Configure a working calendar

For better management, SLA Monitoring for JIRA gives you the possibility to configure one or more working calendar 

Configuration 

1. Add a calendar (Administration >SLA Calendars > Calendar Management)

2. To configure the calendar, Fill the following field 

1. Set the name of the new calendar
2. Set the description of the new calendar
3. Click on the checkbox to choose the working day of the week
4. Define the start time of the work for each working day
5. Define the end time of the work for each working day
6. Add a new holiday to the calendar
7. Set the date of the holiday
8. Is it a repeated or exceptional holiday? ( Checked = Repeated)
9. Click 'ADD' to add the holiday
10. After filling all the fields, Save the new calendar by clicking on the button 'SAVE'