Adobe After Effects CS5 Time navigation (keyboard shortcuts) keyboard shortcuts keys

Shortcut                                                                      Command
Alt+Shft+J	Go to specific time
Shft+Home or Shft+End	Go to beginning or end of work area
J or K	Go to previous or next visible item in time ruler (keyframe, marker, work area beginning or end)
Home or Ctrl+Alt+Left Arrow	Go to beginning of composition, layer, or footage item
End or Ctrl+Alt+Right Arrow	Go to end of composition, layer, or footage item
Page Down or Ctrl+Right Arrow	Go forward 1 frame
Shft+Page Down or Ctrl+Shft+Right Arrow	Go forward 10 frames
Page Up or Ctrl+Left Arrow	Go backward 1 frame
Shft+Page Up or Ctrl+Shft+Left Arrow	Go backward 10 frames
I	Go to layer In point
O	Go to layer Out point
Ctrl+Alt+Shft+Left Arrow	Go to previous In point or Out point
Ctrl+Alt+Shft+Right Arrow	Go to next In point or Out point
D	Scroll to current time in Timeline panel