Click the Admin tab.
Click the Settings tab.
Scroll down to Date Format Settings section.
Set the format and click Format.
The administrator defines the date and time formats used in worklists, reports, summaries and elsewhere in the system. To define the date format,
Go to the Settings page
Scroll down to the Date Formatting section.
Using the pull down menus, select the date, time and interval format you want.
click the Format button to save the changes.
Time intervals are periods of time, such as 5 minutes or 4 days. If you need delimiters between some of the fields, such as a comma between the day and the year, enter it into the respective field. If you do not want delimiters, clear the field. The delimiter fields supports a single character.