Default date, time and language settings for the whole organization
The administrator can set up the default date, time and language for the whole company in Configuration → Account settings
The administrator can change the date, time and language settings for an employee
If you (as an Administrator) want to change the date and time format or language for one employee:
Open Configuration → Employees
Double-click on the employee for whom you want to change the settings
Click Settings tab
Check Activate custom settings, make the changes and click Save
Each employee can change their personal settings too
Each employee can choose his own date and time format and language interface
Open menu in the bottom left corner of the screen and click User Profile
Check Activate custom settings and make the changes
Click Save
