Up/Down/Left/Right Arrow - Moves the focus one cell up/down/left/right.
ENTER/SPACE - Selects the focused cell in MonthView mode or navigates to lower view.
HOME - Focuses the first cell of the current month in MonthView mode.
END - Focuses the last cell of the current month in MonthView mode.
CTRL + Left/Right Arrow - This keyboard combination does the same as pressing the Previous/NextButton - navigates to previous/next month/year/decade/century in MonthView/YearViewMode/DecadeView/CenturyView mode.
CTRL + Up/Down Arrow - Switches between the view modes.
Up Arrow - This is the keyboard alternative to clicking on the navigation header. Navigates to upper view mode.
Down Arrow - It uses the currently focused/selected cell to navigates to lower view mode.