Day/Week/Month view

Alt+# (1-9) 
View from 1 through 9 days

Alt+0 (Zero) 
View 10 days

Alt+Hyphen Sign 
Switch to weeks

Alt+Equal Sign 
Switch to months

Ctrl+Tab Or F6 
Move between Calendar, TaskPad, and the Folder List

Shift+Tab 
Select the previous appointment

Left Arrow 
Go to the previous day

Right Arrow 
Go to the next day

Alt+Left Arrow 
Move selected item to the previous day when multiple days appear

Alt+Right Arrow 
Move selected item to the next day when multiple days appear

Alt+Down Arrow 
Go to the same day in the next week

Alt+Up Arrow 
Go to the same day in the previous week

For Day view

Home  
Select the time that begins your work day

End  
Select the time that ends your work day

Up Arrow  
Select the previous block of time

Down Arrow  
Select the next block of time

Page Up  
Select the block of time at the top of the screen

Page Down  
Select the block of time at the bottom of the screen

Shift+Up Arrow Or Down Arrow  
Extend or reduce the selected time

With The Cursor In The Appointment, Alt+Up Arrow Or Down Arrow  
Move an appointment

With The Cursor In The Appointment, Alt+Shift+Up Arrow Or Down Arrow  
Change an appointment start or end time

Alt+Down Arrow  
Move selected item to the same day in the next week

Alt+Up Arrow  
Move selected item to the same day in the previous week

For Week or Month views

Home  
Go to the first day of the week

End  
Go to the last day of the week

Page Up  
Go to the same day of the week in the previous week (or 5 weeks previous if viewing by month)

Page Down  
Go to the same day of the week in the next week (or 5 weeks ahead if viewing by month)

Alt+Up, Down, Left, Or Right Arrow  
Move the appointment up, down, left, or right

Shift+Left, Right, Up, Or Down Arrow; Or Shift+Home Or End  
Change the duration of the selected block of time

For Date Navigator

Alt+Home  
Go to the first day of the current week

Alt+End  
Go to the last day of the current week

Alt+Up Arrow  
Go to the same day in the previous week

Alt+Down Arrow  
Go to the same day in the next week

Alt+Page Up  
Go to the first day of the month

Alt+Page Down  
Go to the last day of the month