The Tenant UI provides the following user preferences:

• Date Format: By default, the format is MM/DD/YY (for example, 09/25/14). Choose an alternate format from the dropdown.
• Display Time Zone: Select or search for your time zone.
• Use 24-Hour Time Format: Enable this option if you want the UI to represent time in 24-hour time format instead of 12-hour clock format.
• Enable Help Pop-ups: Help popups provide contextual help text in the Tenant UI. By default, they are enabled. To prevent help popups from appearing in the UI, clear this checkbox. Alternatively, you can prevent individual popups by selecting the Don't Show Again checkbox when the popup appears. To clear the list of popups marked asDon't Show Again, click Reset All.
• Default Palette: Select from various color palettes for the UI.

You may need to log out of the UI and log back in to see the effects of your changes.