The Time Picker works like a numeric box with increment and decrement buttons. It enables the user to choose a specific time or enter a specific time in the numeric box.

Adding Time Picker at Design-Time

The Ribbon TimePicker can be added at design-time using the Ribbon Group Floating Toolbar or RibbonGroup Items Collection Editor. Also, you can customize the look of the Ribbon TimePicker using the Ribbon TimePicker Floating ToolBar or by editing the properties in the Properties Window. For more information about floating toolbars, refer this topic. 

The image below depicts the floating toolbar of Ribbon TextBox.

Adding Time Picker through Code

A TimePicker can also be added to the C1Ribbon control through the code using the RibbonTimePicker class. This is depicted in the code below:

' Add TimePicker
Dim timePicker As RibbonTimePicker = New RibbonTimePicker()
timePicker.Label = "Select Time:"
formatGroup.Items.Add(timePicker)

// Add TimePicker
RibbonTimePicker timePicker = new RibbonTimePicker();
timePicker.Label = "Select Time:";
formatGroup.Items.Add(timePicker);